ZKTeco C3-400 Plus RFID Access Controller in Dubai, UAE
A networked four-access-point controller for businesses that want centralized RFID, password, and QR-based door management with flexible reader connectivity.
The C3-400 Plus is designed for small and medium enterprise access-control projects that need multiple doors on one panel, substantial credential capacity, door monitoring inputs, lock outputs, and integration with ZKBio CVAccess. FourTeck can help buyers confirm readers, locks, power, enclosure, cabling, software, quantity, and delivery requirements before quotation.
Centralized Door Control for Practical Multi-Entrance Security
The ZKTeco C3-400 Plus is a four-access-point network controller built to sit at the center of a wired access-control system. Instead of relying on separate standalone devices at every secured entrance, a business can connect compatible readers, electric locks, door sensors, exit buttons and auxiliary devices to one controller and manage permissions through the supported software environment. For an office, school, clinic, warehouse, retail back office or mixed-use commercial site, this creates a structured way to control who can open each door and when.
The panel supports up to 100,000 users, 100,000 standard card credentials, 100,000 static or dynamic QR codes and 500,000 transaction records. Those capacities matter when a company expects more than a small list of staff cards or wants enough event history for operational review. The controller also provides four electric-lock outputs, four door-sensor inputs, four exit-button inputs and four auxiliary input/output positions in its standard four-door configuration. Expansion through EX0808 boards is supported where the project requires additional I/O.
Reader selection is a major part of the buying decision. The C3-400 Plus supports ZKTeco RS-485 readers using ZKTeco protocols and OSDP, and it also includes Wiegand inputs for compatible third-party readers. ZKTeco identifies QR50, QR500 and QR600 as compatible QR reader options in the C3 Plus family. This gives project designers flexibility, but it also means buyers should confirm reader protocol, credential type and door-direction requirements before ordering hardware.
For Dubai and UAE projects, the practical question is not only whether the controller supports four doors. The complete bill of materials may include readers, locks, emergency break-glass devices, power supplies, a metal enclosure, backup battery, cabling, mounting items and software planning. FourTeck can review the intended site layout and quantity so the quote reflects the complete requirement rather than only the controller board.
Why the Four-Door Architecture Matters
Control several secured entrances from one panel
A four-access-point controller reduces the need to treat each entrance as an isolated system. For a typical office floor with a main entrance, server room, records room and staff-only area, one controller can provide a cleaner architecture and a common policy framework. Centralized hardware also simplifies project documentation because door inputs, lock outputs and reader connections can be planned around a known panel rather than mixed standalone devices.
Large credential and event capacity
Support for 100,000 users and 500,000 transactions gives organizations headroom for employee, contractor and visitor workflows. Capacity is useful not only for large companies but also for sites that retain substantial access history or expect future growth.
OSDP and Wiegand integration options
The combination of RS-485/OSDP and Wiegand helps integrators match the controller with different reader strategies. It can support modern supervised reader communications where suitable while still allowing compatible Wiegand readers in retrofit or mixed-device environments.
Access rules beyond simple card acceptance
The platform supports access levels, access groups, holidays, anti-passback, anti-tailgating, linkage, global linkage and multiple verification methods. These controls can help an administrator move from simple unlock events to role-based access policies that reflect business operating hours and restricted areas.
Network-based administration
TCP/IP connectivity and ZKBio CVAccess support allow the controller to participate in a managed access-control deployment rather than functioning only as a local door device. That is important for IT and security teams that need centralized user administration and event visibility.
I/O expansion for more complex projects
The C3 Plus platform supports EX0808 I/O expansion boards through RS-485. ZKTeco specifies support for up to eight EX0808 boards, allowing additional inputs and outputs for projects with extra monitoring, linkage or control requirements. Expansion should be planned as part of the system design because power, enclosure space, wiring and the exact automation logic must be confirmed before installation.
A Four-Door Panel Designed Around Flexible Credential Workflows
The key strength of this controller is the combination of four-door control, multiple credential methods and mixed reader connectivity. It supports card, password and QR code authentication, which allows a deployment to serve permanent staff cards while also accommodating QR-based workflows where the selected readers and software design support them. Dynamic QR codes can be used with the ZKBio CVAccess mobile application, while additional QR formats are available for third-party development projects.
Security-minded buyers should also note that ZKTeco documents AES-256 encryption for stored data, AES-128 for communication between the controller, readers and I/O expansion boards, and HTTPS/TLS 1.2 protection for server-to-web-client communications in the C3 Plus series. These capabilities do not replace good network segmentation, credential policy or physical installation practices, but they are relevant when selecting a modern access-control platform.
ZKTeco C3-400 Plus Specifications
The table below reflects confirmed manufacturer information for the C3-400 Plus. Accessories, enclosure, power components and software deployment should be checked for the specific project.
| Specification | C3-400 Plus |
|---|---|
| Brand / Model | ZKTeco C3-400 Plus |
| Product type | IP-based four-access-point control panel |
| Operating system | Linux OS |
| Hardware | Single-core 1.0GHz CPU, 128MB RAM, 256MB ROM |
| Authentication | Card / Password / QR Code |
| User capacity | 100,000 |
| Card capacity | 100,000 standard |
| QR capacity | 100,000 static / dynamic QR codes |
| Transaction capacity | 500,000 standard |
| Reader capacity | 8 RS-485 readers (ZKTeco RS-485 / OSDP), 4 Wiegand readers (26/34/66-bit) |
| Door I/O | 4 exit-button inputs, 4 door-status inputs, 4 auxiliary inputs, 4 lock relays, 4 auxiliary outputs, 4 alarms |
| Expansion | Up to 8 EX0808 I/O expansion boards via RS-485 |
| Communication | 1 x TCP/IP, 1 x RS-485 bus, 4 x Wiegand inputs, 1 x USB Type-A for USB drive |
| Standard functions | Webserver, access levels, access groups, holidays, anti-passback, anti-tailgating, linkage, global linkage, multiple verification methods |
| Power | 9.6V–14.4V DC |
| Operating environment | 0°C to 45°C; 20% to 80% RH, non-condensing |
| Board dimensions | 215.88 x 99.14 x 19.3 mm |
| Board weight | 0.252 kg net; 0.357 kg gross |
| Software | ZKBio CVAccess |
| Optional enclosure | 350 x 90 x 300 mm SPCC steel enclosure; 110–240V AC input PSU with 12V 4A+1A DC output; reserved backup-battery space |
| Certifications listed by manufacturer | ISO14001, ISO9001, CE, FCC, RoHS |
Choosing the right configuration requires more than confirming the controller model. A four-door site can use different reader combinations depending on whether entry-only or entry-and-exit authentication is required, what protocol the selected readers use and whether QR scanning is part of the project. Lock type also affects power and relay planning. Buyers should identify each door, reader side, lock type, exit method, door sensor, alarm linkage, cable route and power location. If a metal enclosure or battery-backed arrangement is needed, it should be included in the scope rather than assumed to be part of every controller package.
How to Plan the Right C3-400 Plus Deployment
The safest way to buy a multi-door controller is to plan the complete door environment first. The controller is one part of a system that also depends on readers, locks, power, software and installation choices.
How many controlled doors?
Use the four-access-point model where one controller should manage up to four access points. If the project has fewer doors, a smaller C3 Plus model may be simpler; if it has more, plan multiple controllers and software structure.
Which readers and credentials?
Confirm RFID technology, QR requirement, reader protocol and whether the reader needs OSDP or Wiegand. Do not assume every RFID reader uses the same card technology or communication method.
Lock and power design
Electric strikes, magnetic locks and other locking devices can have different current requirements and fail-safe/fail-secure behavior. The controller and locks should be powered according to the installation design, with battery backup considered where required.
Software and network
Confirm the ZKBio CVAccess environment, controller IP addressing, network reachability and administrative responsibilities. Access-control devices should be included in the site’s network-security and backup planning.
Expansion and linkage
If elevators, alarms, additional monitored contacts or other external systems are involved, review whether standard I/O is enough or EX0808 expansion is required. Integration logic should be defined before hardware is ordered.
Useful quote information: number of doors, entry/exit reader requirement, reader model or credential type, lock type, quantity, enclosure requirement, battery requirement, software environment, delivery location and target project date.
Where This Four-Door Controller Fits Best
Office floors and headquarters
A corporate floor often has several areas with different access rules: the main staff entrance, an IT/server room, a finance or records room and a management or operations area. A four-door controller allows these points to share centralized permissions while still applying separate schedules and access groups. This is especially useful when staff roles differ by department and temporary access needs to be granted without changing the physical lock arrangement.
Warehouses and logistics sites
Warehouses may need controlled access to staff entrances, secure storage, dispatch zones and management rooms. Door sensors and access events can help security teams maintain a more structured record of entry activity while keeping public or visitor areas separate from restricted zones.
Education and training facilities
Schools, academies and training centers can use centralized access policies for staff-only rooms, laboratories, administration offices and equipment stores. Holiday schedules and access groups can be useful where different departments follow different timetables.
Clinics and professional practices
Medical, legal and professional offices often have rooms that should remain separate from public reception areas. A multi-door controller can support role-based access to records rooms, medicine stores, staff zones or back-office facilities, subject to the organization’s physical-security policy.
Retail back-of-house areas
Retail locations can separate customer spaces from stock rooms, cash offices, staff entrances and management rooms. Access history can support operational accountability while centralized credential administration makes it easier to change permissions when staffing changes.
C3-400 Plus Reader Connectivity and Credential Flexibility
For most buyers, reader compatibility is the first technical issue to resolve. The controller provides RS-485 support for ZKTeco RS-485 readers and OSDP, as well as four Wiegand inputs. ZKTeco specifies a reader capacity of eight RS-485 readers for the C3-400 Plus, while the Wiegand side supports four readers. This distinction matters when a project needs readers on both sides of doors or combines different reader technologies.
OSDP can be valuable where the selected reader and system design require supervised digital reader communication. Wiegand remains relevant for many existing readers and retrofit projects. The best protocol is not chosen by brand preference alone; it depends on the actual reader, cabling, security requirement and existing infrastructure.
C3-400 Plus Capacity, Event History and Access Policies
The controller’s database capacity provides room for large credential sets and transaction history, but capacity should be interpreted in the context of actual administration. A system with 100,000 supported users still needs a disciplined process for enrollment, badge replacement, terminated-user removal, visitor access and regular review of permissions. Hardware capacity gives headroom; operational policy determines whether that headroom is used safely.
Access levels, access groups, holiday schedules, anti-passback, anti-tailgating and linkage features help convert those credentials into meaningful business rules. Before deployment, decide which departments can access each door, what happens outside business hours, how visitors are handled, whether anti-passback is operationally suitable and who is responsible for reviewing access events.
C3-400 Plus Secure Communication and System Management
ZKTeco documents several security-related mechanisms for the C3 Plus series: AES-256 for stored data, AES-128 for communications between the controller, readers and I/O expansion boards, and HTTPS/TLS 1.2 for communication between the server and web client. These are useful platform characteristics, particularly for buyers replacing older access controllers that were designed before encrypted communications became a common requirement.
Encryption is only one layer of a secure deployment. The controller should still be installed on an appropriately managed network, with access to administration interfaces restricted to authorized personnel. Strong account management, documented IP addressing, configuration backups and regular review of software and firmware requirements are part of the operating plan.
Decision checklist
- Confirm who will administer ZKBio CVAccess.
- Place access-control devices on a suitable network segment.
- Document controller addresses, reader addresses and door assignments.
- Plan configuration backup and change control before go-live.
What Buyers Should Check Before Purchase
The biggest purchase risk is treating a four-door controller as a complete access-control system. The board must be matched with the right readers, locks, power arrangement, enclosure, software, cabling and door behavior. Confirming these items before quotation can prevent missing accessories and incompatible components.
Controller and Door Fit
Confirm whether the site needs one, two or four controlled access points and whether each door needs authentication on one side or both sides. The C3-400 Plus is the four-access-point model; smaller C3 Plus variants may suit simpler sites. Multiple controllers may be appropriate for larger buildings.
Compatibility Check
Provide reader models, card technology, lock type, door sensor and exit device details. If the project uses existing readers, confirm whether they are Wiegand or supported RS-485/OSDP devices. QR workflows should also identify the intended QR reader and software process.
Availability and Warranty
Controller availability, enclosure choice, accessories and warranty handling can vary by supplier route and order quantity. Ask for these terms in the quotation instead of assuming a standard bundle. FourTeck can provide current guidance based on the requested configuration and destination.
Quote Preparation
Share the number of doors, quantity of controllers, reader requirement, credential type, locks, optional enclosure, software environment, delivery location and required date. For project supply, include any installation, commissioning or documentation expectations so the commercial scope is clear.
Buyers also frequently ask whether the panel can work with an existing access-control installation. The answer depends on the existing readers, credentials, lock power, cabling and software architecture. Wiegand support can help with some retrofit situations, while OSDP can support newer reader designs, but compatibility should be checked component by component. If the existing system uses proprietary credentials or reader communications, model names and photos of current hardware can make the review faster.
Availability, Configuration and Delivery Guidance in the UAE
FourTeck supports access-control inquiries across Dubai and the UAE with assistance for product selection, configuration review, quote preparation, delivery coordination and warranty guidance. Availability may vary by order quantity, enclosure requirement, reader selection, accessory list and supplier status, so buyers should request a current quotation for the exact project scope.
Dubai, Abu Dhabi, Sharjah and Ajman Project Coverage
Businesses in Dubai, Abu Dhabi, Sharjah and Ajman can contact FourTeck for product availability, configuration guidance and quote assistance for access-control projects. The most useful inquiry includes the project location, quantity, number of controlled doors, preferred reader type, credential technology, lock type and any enclosure or backup-power requirements. For multi-site projects, buyers can provide a site-by-site door schedule so controller quantities and accessory requirements can be reviewed more accurately.
Regional Supply Support Across GCC and Africa
FourTeck also supports business technology inquiries across selected GCC and Africa markets through its regional platforms and inquiry channels. Requests may come from the UAE, Saudi Arabia, Qatar, Oman, Kuwait, Bahrain, Kenya, Uganda and other Africa-region destinations. Availability, delivery methods, commercial terms, warranty handling and installation responsibilities can vary by country and project.
For cross-border orders, provide destination country, city, quantity, required accessories and target delivery date. Access-control products may also require local installation planning, power considerations and compatible credentials, so a controller-only quote may not represent the full project need.
Other ZKTeco Options Buyers May Consider
The right model depends mainly on door count, reader requirements and the planned credential workflow. Buyers should choose the smallest controller architecture that comfortably fits the site while leaving room for realistic expansion.
ZKTeco C3-200 Plus
A two-access-point model in the same family for sites that do not need four controlled access points. It can reduce unnecessary panel capacity in smaller offices or compact secure areas.
ZKTeco C3-100 Plus
The one-access-point model for a focused single-door project where the larger C3-400 Plus would provide more capacity than the site requires.
ZKTeco QR50 / QR500 / QR600 Readers
ZKTeco lists these QR readers as compatible options within the C3 Plus platform. Reader choice should be based on the intended QR workflow, mounting location and project design.
EX0808 I/O Expansion
For installations that need additional inputs and outputs beyond the standard panel interfaces, EX0808 expansion boards can be evaluated as part of the system design.
Why Business Buyers Contact FourTeck
Access-control procurement is often more complicated than selecting a model number from a catalog. A controller that looks correct on paper can still become the wrong purchase if readers use a different protocol, locks draw more power than expected, the enclosure is omitted, cabling is unsuitable or the software environment has not been planned. FourTeck’s role is to help buyers turn the door requirement into a clearer purchasing scope.
Help identify the requested model and associated project items based on current supply options.
Review door count, reader type, locks, I/O, enclosure and software requirements before quotation.
Build a commercial request around quantity, accessories, destination and required project timing.
Coordinate supply expectations for UAE and eligible regional requirements based on the final order.
Clarify applicable warranty handling for the specific quoted supply arrangement.
Suggest a smaller or related model when the four-access-point controller is more than the project requires.
Questions About the ZKTeco C3-400 Plus
What is the C3-400 Plus used for?
It is an IP-based access-control panel for managing up to four access points. Businesses can connect compatible readers, electric locks, door sensors, exit buttons and auxiliary devices, then manage users and access rules through the supported ZKBio CVAccess environment. It suits multi-door offices, warehouses, schools, clinics and commercial facilities.
Does it support RFID and QR codes?
Yes. ZKTeco specifies card, password and QR-code authentication for the C3 Plus series. The controller supports 100,000 standard cards and 100,000 static or dynamic QR codes. The complete QR workflow depends on the selected reader and software design, so buyers should confirm the intended QR reader before ordering.
How many readers can the C3-400 Plus connect?
ZKTeco lists capacity for eight RS-485 readers using ZKTeco RS-485/OSDP and four Wiegand readers. The usable layout depends on door direction and reader placement. Before purchase, map each door and identify whether authentication is needed on entry only or on both entry and exit.
Can it work with third-party Wiegand readers?
The controller includes Wiegand inputs and supports 26, 34 and 66-bit card lengths according to ZKTeco documentation. That can make it useful for some retrofit or mixed-reader projects. However, reader compatibility should still be verified because credential technology, output format and power requirements can differ between devices.
Is the metal enclosure included?
ZKTeco lists wall mounting with a metal enclosure as an optional installation arrangement. The optional enclosure includes a specified power-supply arrangement and reserved space for a backup battery. Package contents can vary by supplier, so the quote should explicitly state whether the enclosure, power supply and battery are included.
Can FourTeck help with configuration planning?
Yes. FourTeck can review the intended door count, reader protocol, credential type, lock requirement, enclosure, expansion needs, software environment, quantity and delivery location. This helps turn a model request into a more complete bill of materials and reduces the chance of missing an important accessory.
Is the controller available in Dubai and the UAE?
FourTeck supports UAE inquiries and can check current supply options for the requested quantity and configuration. Availability can change with supplier status, optional enclosure, accessory requirements and project volume. For an accurate response, send the model, quantity, delivery location and required project date.
What should I provide to request a quote?
Provide the controller quantity, number of doors, reader requirement, card or QR credential type, lock type, optional enclosure requirement, software environment, delivery location and target date. If you already have readers or locks, include their model numbers so compatibility can be reviewed before the quote is finalized.
When should I choose C3-200 Plus instead?
If the site only needs two access points and there is no near-term requirement for four, the C3-200 Plus may be a more proportionate choice within the same family. The selection should be based on the actual door plan, reader count and expansion expectation rather than simply choosing the largest controller.
Need Help Building the Correct Four-Door Access Control Scope?
FourTeck can review the controller, readers, locks, enclosure, software, quantity, delivery location and project timing before preparing a quote. Sharing these details up front helps identify missing accessories and clarify whether C3-400 Plus is the right model for the site.
Send the number of doors, reader requirement, credential type, lock type, controller quantity, location and target date.
