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Compact black USB 3.0 to Gigabit Ethernet adapter with short cable

Tripp Lite

Tripp Lite U336-000-R USB 3.0 Gigabit Ethernet Adapter

SKU CH-15V1-XK4W6 MPN U336-000-R

Adds a Gigabit Ethernet port to a computer through a USB 3.0 connection

  • Adapter typeUSB to Ethernet
  • First connector1x USB 3.0 male
  • Second connector1x 1 Gbit/s Ethernet female
  • Product colorBlack
  • Key featuresCompliant with USB 3.0 specifications Compliant with IEEE 80
  • Product dimensions2.6 inL × 0.9 inW × 0.6 inH
  • USB 3.0 SuperSpeed delivers gigabit wired networking
  • Compact 2.60" x 0.90" x 0.60" design fits any bag
  • Lightweight 0.06 lbs adapter adds no bulk
  • IEEE 802.3az Energy Efficient Ethernet reduces power draw
  • IPv4 and IPv6 checksum offload eases CPU load

USB 3.0 Gigabit Ethernet Adapter

The Tripp Lite U336-000-R adds a wired 10/100/1000 Mbps network port to any computer with a free USB 3.0 Type-A socket. It targets users whose laptops or desktops lack built-in Ethernet or need a replacement for a failed onboard controller. The compact black dongle draws power directly from the bus and requires no external supply.

IEEE 802.3az and checksum offload support

Compliance with IEEE 802.3az Energy Efficient Ethernet lets the link enter low-power idle periods when traffic drops, reducing host-system load. IPv4 and IPv6 checksum offload engines move packet validation into the adapter hardware, freeing CPU cycles for other tasks. These features change the adapter from a simple physical-layer bridge into a modest acceleration device.

USB 3.0 bus and 1 Gbps PHY ceiling

The USB 3.0 SuperSpeed interface caps practical throughput at the bus signalling rate, while the Ethernet PHY is limited to 1000 Mbps full-duplex. Real-world speeds will sit below the theoretical maximum due to protocol overhead and host-controller scheduling. Buyers needing multi-gigabit or 10 GbE performance must select a different interface class.

How it compares

Measured against everything we stock in Patch Panels, PoE & LAN Adapters, at today’s prices. Recalculated every night.

Price $38.99
Cheaper than about 63% of the 559 comparable items (median $56.99).

Specifications

Product
Brand nameTripp Lite
Model nameU336-000-R
Product colorBlack
Adapter typeUSB to Ethernet
Ports & slots
First connector1x USB 3.0 male
Second connector1x 1 Gbit/s Ethernet female
Size & build
Cable lengthNo
Product dimensions2.6 inL × 0.9 inW × 0.6 inH
Product weight0.06 lb (0.03 kg)
Shipping weight0.08 kg
Package size135 × 132 × 23 mm

Questions about this item

Does the USB 3.0 male connector on the U336-000-R wear out after repeated insertion cycles?

The adapter uses a single USB 3.0 male plug rated for standard insertion durability; no moving parts or replaceable contacts exist on the unit.

What thermal limit appears first when the adapter runs at 1000 Mbps continuously?

The aluminium housing dissipates heat passively; sustained gigabit throughput stays within the IEEE 802.3az Energy Efficient Ethernet envelope without active cooling.

How much extra power does the U336-000-R draw from the host USB port during all-day operation?

It draws bus power only, compliant with USB 3.0 SuperSpeed limits, and the 802.3az feature reduces draw during low-traffic periods.

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