We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
White USB-C male to RJ-45 female network adapter

Nippon Labs

Nippon Labs 30UC-CGB USB 3.1 Type-C to Gigabit Ethernet usb converter

SKU CH-CJ8D-HJTE2 MPN 30UC-CGB

Adds a wired Gigabit Ethernet port to USB-C devices that support DP Alt Mode or Thunderbolt 3, delivering up to 5 Gbps bandwidth without extra drivers

  • Adapter typeUSB to Ethernet
  • First connectorUSB 3.1 Type-C Male
  • Second connectorRJ-45 (Gigabit Ethernet)
  • Product typeUSB 3.1 Type-C to Gigabit Ethernet
  • Product colorWhite
  • DetailsCompatible Devices for USB 3.1 Type-C with DP Alt Mode or Th
  • Gigabit wired networking through a USB-C port
  • USB 3.1 speeds up to 5 Gbps for 1000 BASE-T
  • Works with MacBook 2015 and newer plus many Windows laptops
  • Reversible USB-C connector plugs in either way up
  • Driver-free operation on supported devices

USB-C Gigabit Ethernet adapter for DP Alt Mode

The Nippon Labs 30UC-CGB connects a USB 3.1 Type-C port to an RJ-45 Gigabit Ethernet jack. It is intended for laptops, tablets or smartphones whose USB-C socket supports DP Alt Mode or Thunderbolt 3. An Ethernet cable is required to complete the link. The white adapter adds a wired network option where Wi-Fi is unavailable or undesired.

Sustained 1000 Mbps throughput over USB 3.1

The adapter negotiates 10, 100 or 1000 Mbps Ethernet speeds and uses the USB 3.1 5 Gbps pipe for data transfer. Because the bus bandwidth exceeds the Gigabit line rate, the link can maintain full wire speed during long file copies or streaming sessions without the thermal throttling sometimes seen on lesser USB 2.0 dongles. No driver installation is needed on supported operating systems.

Verify your USB-C port supports DP Alt Mode

Before ordering, confirm that the host device’s USB-C implementation includes DisplayPort Alternate Mode or Thunderbolt 3; a plain USB 2.0 or power-only Type-C port will not pass Ethernet traffic. The product documentation lists compatible models from Apple, Dell, ASUS, Lenovo, HP, Huawei, Samsung and others, but the list is not exhaustive. Check the manufacturer’s specifications for your exact device.

How it compares

Measured against everything we stock in USB Adapter Cables & Dongles, at today’s prices. Recalculated every night.

Price $17.99
Pricier than about 63% of the 1,430 comparable items (median $14.99).

New to this? Which coin should you pay with — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameNippon Labs
Model name30UC-CGB
Product typeUSB 3.1 Type-C to Gigabit Ethernet
Product colorWhite
Adapter typeUSB to Ethernet
Ports & slots
First connectorUSB 3.1 Type-C Male
Second connectorRJ-45 (Gigabit Ethernet)
Size & build
Shipping weight0.04 kg
Package size244 × 157 × 18 mm

Questions about this item

Does the 30UC-CGB adapter generate noticeable heat or draw extra power when I run a wired Gigabit link all day?

The adapter draws power only from the USB-C port and has no fan, so heat output stays low during continuous 10/100/1000 Mbps use.

My laptop only has a USB-C port — does it need to support Thunderbolt 3 or DP Alt Mode for the 30UC-CGB to work?

Yes, the host device must provide a USB 3.1 Type-C port with DP Alt Mode or Thunderbolt 3; plain USB 2.0-C ports will not activate the Gigabit Ethernet link.

Will the 30UC-CGB work on my 2015 MacBook and a 2016 MacBook Pro without installing any driver?

Both models are listed as compatible and the adapter requires no extra driver software on macOS or Windows.

More in USB Adapter Cables & Dongles

Similar items