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Black RJ45 male to USB-C female adapter, compact aluminum body, 5.7 x 1.2 x 1 cm

Dell KA305 RJ45 to USB-C Female Gigabit Data Adapter

SKU CH-5GFZ-AMPHS MPN KA305

A compact RJ45-to-USB-C adapter that adds gigabit Ethernet to laptops, tablets and phones using your own Thunderbolt or USB 3.2 cable

  • Adapter typeType
  • Units per package1
  • Product typeBlack
  • Product colorBlack
  • DetailsKA305; IVSHOWCO; Gray; 5.7 L x 1.2 W x 1 H centimeters; 0.02
  • Product dimensions14.33 in W × 12.83 in H × 9.06 in D
  • RJ45 male to USB-C female design lets you use your own Thunderbolt cable
  • Gigabit Ethernet up to 1 Gbps for stable wired networking
  • Driver-free plug-and-play on Windows 10, 11, macOS, iPadOS, ChromeOS, Android
  • Aluminum alloy housing provides passive heat dissipation for reliable performance
  • Compact 5.7 × 1.2 × 1 cm adapter turns any USB-C port into a network port

Portable Gigabit RJ45 Adapter

The Dell KA305 is a compact RJ45 male to USB-C female adapter that turns any USB-C port into a wired gigabit Ethernet connection. It is aimed at laptop, tablet and phone users who need a stable 1Gbps link without carrying a bulky dock. The aluminium housing provides passive cooling during sustained transfers. No driver installation is required on supported operating systems.

Use Your Own Cable Design

Unlike fixed-pigtail dongles, this adapter lets you connect your own Thunderbolt 4 or USB 3.2 cable for flexible reach and cable management. The package contains only the adapter itself, so you must supply a compatible data cable rated for USB 3.0 or higher. This one-way device transmits Ethernet to the host and cannot operate in reverse. The plug-and-play design works instantly on Windows 10, 11, macOS, iPadOS, Chrome OS and Android.

For Mobile Professionals Needing Wired Reliability

Ideal for travelers, hotel stays, co-working spaces and legacy IT gear that lacks a built-in RJ45 port. Buyers who want an all-in-one hub with extra ports or power delivery should look elsewhere. The adapter also does not suit setups requiring reverse USB-C to Ethernet bridging or cables shorter than the 5.7 cm unit length.

How it compares

Measured against everything we stock in Interface & Card Adapters, at today’s prices. Recalculated every night.

Price $25.99
Pricier than about 63% of the 354 comparable items (median $21.99).

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Specifications

Product
Brand nameDell
Product lineKA305
Model nameKA305
Product typeBlack
Product colorBlack
Adapter typeType
Size & build
Product dimensions14.33 in W × 12.83 in H × 9.06 in D
Product weight0.02 kg
In the box
Units per package1
In the box1

Questions about this item

Does the aluminum housing need any cleaning or thermal-paste refresh to keep the Gigabit link stable?

The adapter uses a passive aluminum shell that dissipates heat without fans or thermal paste. No internal maintenance is required; just keep the RJ45 and USB-C ports free of dust.

What throughput ceiling appears first when the link runs continuously at 1 Gbps?

The Gigabit Ethernet port caps sustained throughput at 1 Gbps, so that network interface is the first limit you will hit under constant load.

How warm does the aluminum case get and does it draw noticeable power during all-day use?

The aluminum housing stays cool to the touch thanks to passive dissipation, and the adapter draws minimal power from the host USB-C port during continuous operation.

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