Technical diagnosis
We check the motherboard, processor, memory and the overall stability of the equipment.
Enjoy a wireless controller switch engineered for centralized Wi-Fi network management in small and medium-sized businesses. It connects via Gigabit Ethernet and 10GBase-T ports with PoE support, handling up to 150 access points and 3,000 concurrent users with robust control across corporate campuses or branch offices.
Refurbished-device specialists
This Cisco 3504 Wireless Controller (AIR-CT3504-K9) is well suited for small to medium-sized businesses needing centralized Wi-Fi management. It efficiently controls up to 150 access points and supports 3,000 simultaneous users across corporate campuses and remote branch offices, integrating smoothly with Cisco network infrastructure for secure, high-performance wireless operation.
Each device is individually checked with professional diagnostic tools, cleaned and subjected to a final control before being put up for sale. You receive a functional product, with its cosmetic condition identified and securely packaged.
We check the motherboard, processor, memory and the overall stability of the equipment.
We check the screen, keyboard, touchpad, camera, microphone, speakers and buttons, where applicable.
We test the ports, video and audio outputs, network, Wi-Fi, Bluetooth and available connections.
We analyze the condition of the storage drives and check the operation and useful capacity of the battery.
We perform internal and external cleaning, classify the cosmetic condition and photograph the batch after checking it.
We update the firmware when applicable and prepare the operating system with an official license when included.
We repeat the essential checks and validate that the equipment is stable and ready for sale.
We protect the equipment for transport and include the accessories indicated in the specs so you receive it ready to use.
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View reviewsIt can manage up to 150 access points and support up to 3,000 simultaneous users.
It features 4 Gigabit Ethernet ports (1000Base-T), 1 10GBase-T port, PoE support, RJ-45 and mini-USB console ports, a serial port, a redundancy port, and a USB 3.0 port.
The unit measures 22x33x4.5 cm and weighs 2.20 kg.
The Cisco AIR-CT3504-K9 wireless controller switch delivers centralized control and streamlined management for business Wi-Fi deployments. Tailored for small to medium-sized enterprises, it enables IT administrators to configure, monitor, and optimize wireless access points across corporate campuses and remote branch locations from a single platform.
Equipped with comprehensive physical networking interfaces, the controller features four Gigabit Ethernet ports alongside a 10GBase-T uplink port and Power over Ethernet (PoE) support. Its compact chassis fits easily into standard networking racks or space-constrained wiring closets.
This device includes a 1-year warranty.
To request assistance, contact the Zoca team with your order reference.
You can request a return within the 15 days stated in the purchase terms.
The device must be returned by following the process provided by Zoca.
You can pay with credit/debit card, PayPal, Apple Pay, Google Pay, cash on delivery, or bank transfer.
Card payments are securely processed via Redsys. Available options and conditions are shown before confirming your order.
Free shipping.
Preparation and delivery times are confirmed on the product page and at checkout according to the destination.
Every device undergoes functional checks before it is offered for sale.
The operation of the device is guaranteed.
We clean, grade and prepare it in-house before sale.
Check the to see its cosmetic condition and possible signs of use.
You will receive it protected in our Hardware Refurbished packaging, made from recycled cardboard.
This device includes a 1-year warranty.