AP4051DN
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AP4051DN Overview
Plan the dual PoE uplinks as two separate connections
The AP4051DN port description names GE0/PoE_IN and GE1/PoE_IN. Each provides 10/100/1000M Ethernet and accepts PoE input; Huawei explicitly supports PoE supply on both Ethernet ports and describes power backup in the shared AP4051DN/AP4151DN characteristics. Record the upstream ports, power sources and switching topology in the deployment plan. Verify transfer behavior for the installation rather than promising a universal zero-interruption transition.
Include the USB device in the power and software review
Huawei documents USB2.0 for connecting a flash drive or other storage device to extend AP storage. The shared characteristics also mention external power through USB. The 12.3 W AP consumption reference excludes USB output, so it is not a complete power budget for every attached device. Confirm the supported USB workload, actual source power allocation, software and accessory scope in the quote; the cited hardware chapter does not establish a fixed USB-output wattage.
Use the separate AP4051DN hardware chapter
The manufacturer publishes a separate AP4051DN hardware chapter even though characteristics are shared with AP4151DN. AP4051DN uses built-in omnidirectional dual-band antennas; the reference gain is 5 dBi on each band. Use the exact model label when ordering a replacement and do not transfer an antenna configuration from a similar product name. The official appearance is a model reference, not a photograph of the delivered inventory unit.
Select the mode and client-load acceptance together
Huawei lists Fat, Fit and cloud modes, with cloud management and maintenance through an SDN controller. The AP4051DN hardware table gives a reference of up to 512 users in each mode, qualified by the environment, and 16 VAPs per radio. Confirm the intended software and controller compatibility before choosing a mode. A mode reference does not prove cloud entitlement, delivered image state or guaranteed application capacity.
Check the compact enclosure and input requirements
The hardware reference is 35 × 170 × 170 mm in height, width and depth, with a 0.43 kg weight and IP41 rating. Input is 12 V ±10% DC or IEEE 802.3af/at PoE; adapter inclusion remains an order check. Humidity is 5–95% non-condensing. The manufacturer gives −10°C to +50°C at −60 to 1800 m and a 1°C upper-limit reduction per 300 m from 1800 to 5000 m. Confirm delivered-revision and site suitability before agreeing those installation limits.
Use radio channel rates as references for testing
AP4051DN supports Wave 2 MU-MIMO with two spatial streams and concurrent 2.4 GHz and 5 GHz service. The exact table lists channel-rate ranges reaching 400 Mbit/s for 802.11n and 867 Mbit/s for 802.11ac. Combined transmit references are 23 dBm on each band, subject to local limits. Confirm country settings, channel width, client capability and power before measuring application traffic; channel rates are not a throughput commitment.
Document/Firmware Download
AP4051DN Specification
| Exact model | AP4051DN |
| Wireless architecture | 802.11ac Wave 2; 2×2 MIMO; two spatial streams; MU-MIMO |
| Client bands | Simultaneous 2.4 GHz and 5 GHz |
| Wired PoE interfaces | GE0/PoE_IN and GE1/PoE_IN:10/100/1000M, both accept PoE input |
| Documented backup scope | Dual-port PoE supply backup; verify installation transfer behavior |
| USB interface | USB2.0 storage expansion; output power allocation reviewed separately |
| Management modes | Fat, Fit and cloud; SDN controller management described |
| User and VAP references | Up to 512 users per mode, environment-dependent; 16 VAPs per radio |
| Power input | 12 V ±10% DC or IEEE 802.3af/at |
| Consumption reference | 12.3 W excluding USB output; regional conditions apply |
| Dimensions H × W × D | 35 × 170 × 170 mm |
| Reference weight | 0.43 kg |
| Indoor enclosure and humidity | IP41; 5–95% non-condensing |
| Operating limits | −10 to +50°C at −60–1800 m; above 1800 m derate 1°C per 300 m through 5000 m |
| Antenna type and gain | Built-in omnidirectional dual-band; 5 dBi each band |
| Combined transmit reference | 23 dBm each band; actual setting follows local rules |
| Channel-rate references | 802.11n up to 400 Mbit/s; 802.11ac up to 867 Mbit/s; not application throughput |
| Maintenance and security | Separate CONSOLE, reset button and security slot |
AP4051DN Warranty
 | Product Quotation |  | Condition and Packaging |
 | Return Eligibility |  | Returns and Replacement |
 | Shipping Arrangements |  | Warranty Terms |
AP4051DN FAQ
What is AP4051DN?
AP4051DN is a HUAWEI AP4000 Series Access Points product supplied by YYST Global for enterprise IT procurement and infrastructure projects.
What wireless architecture is listed for AP4051DN?
For AP4051DN, the manufacturer specification lists wireless architecture as 802.11ac Wave 2; 2×2 MIMO; two spatial streams; MU-MIMO.
What client bands is listed for AP4051DN?
For AP4051DN, the manufacturer specification lists client bands as Simultaneous 2.4 GHz and 5 GHz.
What interfaces and ports does AP4051DN provide?
For AP4051DN, the manufacturer specification lists wired poe interfaces as GE0/PoE_IN and GE1/PoE_IN:10/100/1000M, both accept PoE input.
Is AP4051DN available from YYST Global?
Contact YYST Global to confirm availability for AP4051DN, the required quantity, exact configuration, delivery destination and current lead time before ordering. A product listing does not confirm current inventory.
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AP4050DN-S
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AP4050DN-HD
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