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Small white plastic router with five RJ45 ports USB and microSD slot

Mikrotik

Mikrotik hEX RB750Gr3 5‑port Gigabit Ethernet router

SKU CH-4KNE-ANV91

A five-port Gigabit Ethernet router with dual-core 880 MHz CPU, 256 MB RAM, USB 2.0 and microSD slot for wired-only deployments

  • Type of switchEthernet Router
  • Uplink ports5
  • Uplink portsRJ45
  • Main ports5 × 10/100/1000
  • Main port speed10/100/1000 Mbit/s
  • Uplink connection10/100/1000 Mbit/s
  • Wired gigabit routing for locations without wireless
  • Dual-core 880 MHz CPU with 256 MB RAM handles advanced RouterOS configs
  • IPsec hardware encryption up to 470 Mbps secures VPN traffic
  • USB 2.0 Type-A plus microSD slot for storage and Dude server
  • Compact 113×89×28 mm plastic case operates from -30 to 70 °C

Compact wired router for small sites

The Mikrotik hEX RB750Gr3 is a five‑port Gigabit Ethernet router built for locations that do not need wireless connectivity. A dual‑core 880 MHz CPU and 256 MB RAM run RouterOS with full feature support. USB 2.0 and a microSD slot add storage options for logs or The Dude database.

Sustained throughput with hardware IPsec

IPsec hardware encryption offloads crypto work at roughly 470 Mbps, keeping the CPU free for routing and queue management under continuous load. The 16 MB buffer memory absorbs burst traffic without packet loss. Passive PoE input allows the unit to be powered from a single Ethernet cable in cabinet deployments.

Desktop or wall mount with minimal wiring

The plastic case measures 113 × 89 × 28 mm and operates from ‑30 °C to +70 °C, so it fits in tight enclosures without active cooling. A mode button and on‑board voltage and temperature monitors simplify first‑boot diagnostics. Common issues arise when the microSD card is not formatted for RouterOS or when the USB port is expected to deliver high‑speed storage performance.

How it compares

Measured against everything we stock in Wi-Fi Routers, at today’s prices. Recalculated every night.

Price $46.99
Cheaper than about 81% of the 495 comparable items (median $126.99).

Specifications

Product
Brand nameMikrotik
Model nameRB750Gr3
VariantNew
Memory
Buffer size16 MB
Connectivity
Main port speed10/100/1000 Mbit/s
Uplink connection10/100/1000 Mbit/s
Ports & slots
Uplink ports5
Main ports5 × 10/100/1000
Power
Power over EthernetNo
Size & build
Product dimensions113 × 89 × 28 mm
ChassisPlastic Case
Environment & compliance
Temperature range-30 + 70 °C
More details
Type of switchEthernet Router

Questions about this item

How much power does the Mikrotik hEX RB750Gr3 draw when running continuously?

The router accepts 8 to 30 V passive PoE input and includes on-board voltage monitoring, so it can be powered from a single Ethernet cable without a separate adapter.

What storage media does the microSD slot on the RB750Gr3 actually need to function?

Any standard microSD card works; the slot provides faster read and write speeds for The Dude database and general file storage.

Will the five 10/100/1000 Mbps ports on this router negotiate correctly with older 10 Mbps or 100 Mbps switches?

Yes, each Gigabit port auto-negotiates down to 10 or 100 Mbps, so legacy devices connect without configuration changes.

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