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Black USB-C to Gigabit Ethernet adapter with short cable and RJ45 port

Belkin

Belkin B2B145-BLK USB-C to Gigabit Ethernet Adapter network card

SKU CH-5TSV-5AVPV MPN B2B145-BLK

Adds wired Gigabit Ethernet to a USB-C device with a short .15 metre cable

  • Speed10/100/1000Mbps
  • Connectors1 x RJ45
  • InterfaceUSB Type-C
  • FeaturesGigabit Ethernet connectivity USB-C Male and RJ-45 Port Fema
  • Package ContentsUSB-C to Gigabit Ethernet Adapter
  • Gigabit Ethernet speed up to 1000 Mbps for reliable wired connectivity
  • USB-C male plug fits modern laptops and tablets directly
  • RJ-45 female port accepts standard Ethernet cables
  • Compact 0.5-foot cable keeps desk space tidy
  • Supports 10/100/1000BASE-T for broad network compatibility

What This Adapter Does

The Belkin B2B145-BLK adds a wired Gigabit Ethernet port to any device with a USB Type-C connector. It is intended for users who need a stable 10/100/1000Mbps link where Wi-Fi is unreliable or unavailable. The adapter draws power directly from the USB-C port and requires no external supply. It suits laptops, tablets or desktops lacking a built-in RJ45 jack.

Installation and Common Issues

Plug the USB-C male end into the host device and connect an Ethernet cable to the RJ45 female port; most operating systems recognise the adapter immediately without extra drivers. The cable length is .5 foot or .15 meter, so the adapter sits very close to the host and may block adjacent ports on tight layouts. Ensure the USB-C port on your device supports data transfer, as charging-only ports will not pass network traffic.

Practical Limits of USB-C Gigabit Ethernet

Throughput is capped at 1000Mbps by the 10/100/1000BASE-T specification the adapter implements. Real-world speeds depend on the host controller, cable quality and network infrastructure, and will not exceed the Gigabit ceiling. The short .5-foot tether limits placement flexibility and prevents routing the adapter behind furniture or across a desk. Devices restricted to USB 2.0 signalling over their Type-C port will fall back to 100Mbps operation.

Highlights

  • Gigabit Ethernet speed up to 1000 Mbps for reliable wired connectivity
  • USB-C male plug fits modern laptops and tablets directly
  • RJ-45 female port accepts standard Ethernet cables
  • Compact 0.5-foot cable keeps desk space tidy
  • Supports 10/100/1000BASE-T for broad network compatibility

Specifications

BrandBELKIN
ModelB2B145-BLK
Speed10/100/1000Mbps
Connectors1 x RJ45
InterfaceUSB Type-C
FeaturesGigabit Ethernet connectivity
USB-C Male and RJ-45 Port Female Ports
Supports 10/100/1000BASE-T
0.5-foot / 0.15-meter
Package ContentsUSB-C to Gigabit Ethernet Adapter
Shipping weight0.27 kg
Package size259 × 203 × 64 mm

Questions about this item

How do I verify the adapter is running at 1000Mbps after plugging it in?

Check the network status on your device; the link speed should read 1000Mbps and the RJ-45 port LEDs will show a solid gigabit connection.

What comes in the box and do I need any extra cables?

The box contains only the USB-C to Gigabit Ethernet adapter; you must supply your own Ethernet patch cable to reach the router or switch.

Which version of this adapter should I choose for a USB-C laptop?

This single model B2B145-BLK provides a USB-C male connector and a 0.5-foot cable, so select it if your laptop has a USB-C port and you need a short tether.

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