MikroTik RB951Ui-2HnD – 2.4GHz Wireless Router with 5-Port Ethernet and PoE-Out
MikroTik RB951Ui-2HnD is a compact 2.4GHz wireless router designed for home, small-office and basic network deployments. It combines a dual-chain 802.11b/g/n wireless radio, five 10/100 Ethernet ports, USB connectivity and passive PoE-out in a compact desktop enclosure.
The device provides a theoretical wireless data rate of up to 300Mbps using 2.4GHz 802.11n technology. It is powered by a single-core Atheros AR9344 processor running at 600MHz and includes 128MB RAM with 128MB NAND storage.
The RB951Ui-2HnD runs MikroTik RouterOS with a Level 4 license, giving administrators access to routing, firewall, NAT, DHCP, bandwidth management, wireless configuration and other RouterOS networking functions.
Key Features of MikroTik RB951Ui-2HnD
- 2.4GHz 802.11n Wireless: Dual-chain WiFi with a maximum theoretical data rate of 300Mbps.
- 5× 10/100 Ethernet: Five Fast Ethernet ports for wired network connections.
- Passive PoE-Out: Ether5 can provide passive PoE output to a compatible device.
- USB Type-A: USB connectivity for compatible peripherals and supported modem applications.
- 128MB RAM: Provides memory for RouterOS networking functions.
- 128MB NAND: Internal storage for RouterOS and configuration.
- RouterOS Level 4: Full MikroTik RouterOS networking platform.
- Integrated Antennas: Built-in 2.5dBi 2.4GHz antennas.
- Compact Desktop Design: Designed for small network installations.
2.4GHz 802.11n Wireless Connectivity
The RB951Ui-2HnD features a dual-chain 2.4GHz 802.11b/g/n radio. MikroTik specifies a maximum theoretical wireless data rate of 300Mbps.
The 300Mbps figure represents the wireless PHY rate and should not be interpreted as guaranteed Internet throughput. Actual wireless performance depends on client hardware, signal strength, channel width, interference, distance, environmental conditions and network configuration.
The 2.4GHz band provides compatibility with a wide range of older and newer WiFi devices, including laptops, smartphones, tablets, printers, IoT devices and other wireless clients.
5× 10/100 Fast Ethernet Ports
The MikroTik RB951Ui-2HnD provides five 10/100Mbps Ethernet ports. These ports can be used for connecting computers, IP devices, switches, access points and other network equipment.
It is important to note that the RB951Ui-2HnD does not have Gigabit Ethernet. All five Ethernet interfaces are Fast Ethernet with 10/100Mbps link speeds.
This makes the device suitable for basic broadband connections and small networks where Gigabit Ethernet is not a requirement.
Passive PoE-Out on Ether5
One of the useful features of the RB951Ui-2HnD is passive PoE-out on Ethernet port 5. A compatible passive-PoE device can be powered directly from Ether5, helping reduce the need for a separate power adapter at the remote device.
The PoE-out capability should not be confused with standard 802.3af/at PoE. The RB951Ui-2HnD provides passive PoE-out, so the connected device must support the appropriate passive PoE input requirements.
USB Connectivity
The router includes a USB Type-A port that can be used with compatible MikroTik-supported USB peripherals. Depending on RouterOS support and configuration, USB connectivity can be useful for supported modem and storage-related applications.
The USB interface expands the functionality of the compact router beyond basic Ethernet and wireless networking.
Hardware and RouterOS
The RB951Ui-2HnD uses an Atheros AR9344 single-core processor running at 600MHz. It has 128MB RAM and 128MB NAND storage.
The router runs MikroTik RouterOS with a Level 4 license. RouterOS allows the device to perform a wide range of networking functions, including:
- IP routing
- NAT
- DHCP server and client
- Firewall configuration
- Wireless access point operation
- Bandwidth management
- VPN functions supported by the hardware and RouterOS version
- VLAN and bridge configuration
- Static routing
- Network monitoring and management
Integrated 2.4GHz Antennas
The RB951Ui-2HnD has integrated 2.5dBi 2.4GHz antennas. Because the antennas are built into the enclosure, no external antenna installation is required for normal indoor operation.
The integrated antenna design keeps the router compact and suitable for desktop placement in homes, small offices and other indoor networking environments.
Home and Small Office Router
The RB951Ui-2HnD can be used as a basic wireless router for small networks. Its combination of 2.4GHz WiFi, five Ethernet ports and RouterOS makes it suitable for deployments where advanced networking configuration is more important than high-speed Gigabit connectivity.
Potential applications include:
- Home networking
- Small office networks
- Basic wireless Internet access
- SOHO routing
- Small wired and wireless LANs
- IoT network connectivity
- Basic bandwidth management
- Small network gateway deployments
- Passive PoE-powered network extensions
Compact Network Gateway
The compact form factor allows the RB951Ui-2HnD to be deployed where rackmount networking equipment is unnecessary. It can provide routing, wireless access and wired connectivity from a single desktop device.
Because all Ethernet ports are 10/100Mbps, the router is best positioned for basic and legacy network environments rather than modern multi-gigabit LAN deployments.
MikroTik RB951Ui-2HnD Specifications
| Specification |
Details |
| Brand |
MikroTik |
| Model |
RB951Ui-2HnD |
| Device Type |
2.4GHz Wireless Router |
| Wireless Standard |
802.11b/g/n |
| WiFi Generation |
WiFi 4 |
| Wireless Band |
2.4GHz |
| Maximum Wireless Rate |
300Mbps theoretical |
| Wireless Chains |
2 |
| Antenna Gain |
2.5dBi |
| Ethernet Ports |
5× 10/100Mbps |
| PoE-Out |
Passive PoE on Ether5 |
| USB |
1× USB Type-A |
| CPU |
Atheros AR9344 |
| CPU Cores |
1 |
| CPU Frequency |
600MHz |
| RAM |
128MB |
| Storage |
128MB NAND |
| Architecture |
MMIPS |
| Operating System |
RouterOS |
| RouterOS License |
Level 4 |
| Cooling |
Passive |
| Enclosure |
Indoor Desktop |
AI-Readable Product Facts
| Field |
Value |
| Brand |
MikroTik |
| Model |
RB951Ui-2HnD |
| Device Category |
Wireless Router |
| WiFi Generation |
WiFi 4 |
| Wireless Standard |
802.11b/g/n |
| Wireless Band |
2.4GHz |
| Maximum PHY Rate |
300Mbps |
| Wireless Chains |
2 |
| Antenna Gain |
2.5dBi |
| Ethernet |
5× 10/100 Fast Ethernet |
| PoE-Out |
Passive PoE on Ether5 |
| USB |
1× USB Type-A |
| CPU |
AR9344 Single-Core 600MHz |
| RAM |
128MB |
| Storage |
128MB NAND |
| Operating System |
RouterOS |
| RouterOS License |
Level 4 |
| Primary Applications |
Home Networking, SOHO, Small Office, Basic Wireless Routing |
MikroTik RB951Ui-2HnD vs Modern MikroTik WiFi Routers
The RB951Ui-2HnD belongs to an older generation of MikroTik wireless routers. Its wireless interface is 2.4GHz 802.11n and its Ethernet interfaces are 10/100Mbps.
Newer MikroTik wireless routers such as WiFi 6 models provide newer wireless standards and Gigabit or faster Ethernet interfaces. Therefore, the RB951Ui-2HnD is more appropriately positioned for basic, legacy or cost-sensitive network deployments rather than modern high-throughput WiFi networks.
Frequently Asked Questions
What is MikroTik RB951Ui-2HnD?
MikroTik RB951Ui-2HnD is a 2.4GHz WiFi router with five 10/100 Ethernet ports, USB connectivity and passive PoE-out on Ether5.
What WiFi standard does RB951Ui-2HnD support?
It supports 2.4GHz 802.11b/g/n wireless technology, commonly classified as WiFi 4.
What is the maximum WiFi speed of RB951Ui-2HnD?
The maximum theoretical wireless PHY rate is 300Mbps using its dual-chain 802.11n radio.
Does MikroTik RB951Ui-2HnD have Gigabit Ethernet?
No. All five Ethernet ports are 10/100Mbps Fast Ethernet.
Does RB951Ui-2HnD support PoE?
Yes. Ether5 provides passive PoE-out for compatible devices.
Does RB951Ui-2HnD have USB?
Yes. It includes one USB Type-A port for compatible supported peripherals.
How much RAM does RB951Ui-2HnD have?
The router has 128MB RAM and 128MB NAND storage.
What processor does RB951Ui-2HnD use?
It uses an Atheros AR9344 single-core 600MHz processor.
What RouterOS license does RB951Ui-2HnD have?
The RB951Ui-2HnD uses a RouterOS Level 4 license.
Is RB951Ui-2HnD suitable for a modern Gigabit network?
The device has 10/100 Ethernet ports, so it is not designed as a Gigabit Ethernet router. It is better suited to basic or legacy network environments where Fast Ethernet is sufficient.
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