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  • StarTech.com USB 3.0 to Gigabit Ethernet NIC Network Adapter - 10/100/1000 Network Adapter - USB to Ethernet LAN Adapter - USB to RJ45
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StarTech.com USB 3.0 to Gigabit Ethernet NIC Network Adapter - 10/100/1000 Network Adapter - USB to Ethernet LAN Adapter - USB to RJ45

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USB 3.0
Black
  • Compatible with Gigabit Ethernet networks and powered via USB for versatility and portability as an add-on or replacement
  • Uses built-in Checksum and Large Send Offload support and Jumbo Frames, the Gigabit USB adapter helps conserve system resources
  • Backed by a StarTech 2-year warranty and free lifetime technical support
  • USB to RJ45 adapter supports Gigabit networking over USB 3.0
  • IEEE 802.3, 802.3u and 802.3ab (10BASE-T, 100BASE-TX, and 1000BASE-T) compatible
  • Crossover Detection & Auto-Correction (Auto MDIX)
  • IEEE 802.1Q VLAN Tagging support
  • Powered directly from the USB ports

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Frequently Bought Together

StarTech.com USB 3.0 to Gigabit Ethernet NIC Network Adapter - 10/100/1000 Network Adapter - USB to Ethernet LAN Adapter - USB to RJ45 + StarTech.com Mini DisplayPort to VGA Video Adapter -  M/F + StarTech.com MDP2HDMI Mini DisplayPort to HDMI Video Adapter Converter
Price for all three: $59.27

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Technical Details

Capacity: USB 3.0 | Color: Black

Product Details

Capacity: USB 3.0 | Color: Black
  • Product Dimensions: 6.5 x 5.1 x 1.6 inches
  • Shipping Weight: 3.2 ounces (View shipping rates and policies)
  • Shipping: This item is also available for shipping to select countries outside the U.S.
  • ASIN: B0095EFXMC
  • Item model number: USB31000S
  • Average Customer Review: 4.5 out of 5 stars  See all reviews (187 customer reviews)
  • Amazon Best Sellers Rank:
  • Date first available at Amazon.com: September 4, 2012

Product Description

Capacity: USB 3.0 | Color: Black

USB31000S Alternate View
Compatible with Gigabit Ethernet networks and powered via USB for versatility and portability as an add-on or replacement
USB31000S Alternate View
Uses built-in Checksum and Large Send Offload support and Jumbo Frames, the Gigabit USB adapter helps conserve system resources
USB 3.0 to Gigabit Ethernet NIC Network Adapter

The USB31000S USB 3.0 to Gigabit Ethernet Adapter adds a single RJ45 Ethernet port to a USB-enabled computer system, with support for Gigabit network connections at full bandwidth, unlike USB 2.0 adapters.

This compact USB 3.0 network adapter is backward compatible with older USB 2.0/1.x computer systems (speed limited by USB bus), making it the ideal portable replacement network adapter or laptop accessory. Plus, with support for features such as Jumbo Frames, VLAN tagging and Wake on LAN (WOL), the adapter offers a versatile Gigabit network solution for home and business users alike.

The USB31000S USB 3.0 Gigabit adapter is backed by a StarTech.com 2-year warranty and free lifetime technical support.

Product Features & Applications
  • USB to RJ45 adapter supports Gigabit networking over USB 3.0
  • IEEE 802.3, 802.3u and 802.3ab (10BASE-T, 100BASE-TX, and 1000BASE-T) compatible
  • Powered directly from the USB ports
  • Crossover Detection & Auto-Correction (Auto MDIX)
  • IEEE 802.1Q VLAN Tagging support
  • Jumbo Frame support
  • Supports Checksum Offload (IPv4, IPv6, TCP, UDP) and Large Send Offload
  • Activity and Link LED indicators
  • Compact, lightweight design for maximum portability
  • Add Gigabit Ethernet capabilities to a desktop or laptop, without opening the computer or taking up an available expansion slot
  • Replace a failed integrated network adapter with an external, USB Gigabit Ethernet connection, instead of having to open a desktop or laptop computer case
  • Connects your laptop PC to a Gigabit network or backbone - perfect for small or home offices, departmental network applications and network gaming
  • Transfer very large files over the network with access to true Gigabit speeds that USB 2.0 adapters cannot provide

Customer Reviews

No drivers or installation cd necessary.
HSPevolved Archer
The StarTech is easy to setup and once the drivers are installed, pure plug and play as the device settings are set for best throughput as a default.
M. Ichiyama
The StarTech USB 3.0 to Gigabit Ethernet NIC Network Adapter works great.
Claudine Govier

Most Helpful Customer Reviews

19 of 20 people found the following review helpful By islandsound on September 21, 2012
Color Name: BlackSize Name: USB 3.0 Verified Purchase
Bought a 2012 MacbookAir this year. I do have the thunderbolt gigE adapter but I am using the port for the miniport display for the 24" cinema display (Yeah I am one of those mac heads, wanna fight about it? Just joking). Seriously though the adapter I needed since I can't use the thunderbolt port, and there are no thunderbolt hubs out yet. The Air is wireless as everyone knows, which is a pain. Been waiting for this adapter for quite awhile I even wrote to the guys at ASIX asking for one they told me to wait. The short of it this works well with mac but you need the driver for it. The driver included on the CD in the package is old so you might as well check for the latest from ASIX at [...] Mac is sometimes painful so I'm happy this is working well. One thing to note however. I ran a few iperf tests. Incoming connections are getting about 110MB <- megabytes/s where outbound is getting on average of 95MB. The other computers I am testing to are mac and linux both are slower machines. Is it possible the RAM buffer is just that much faster on the Air? Running the adapter on 10.7.4 haven't tried 10.8.

------> Update 8-3-14 <------

Still running great here. I have updated the driver at least once during my operation and it's been running flawlessly. I am still running this on a 2012 MacAir. I have recently purchased a second unit for LACP. I will update this review after I get it installed/setup and tested.

------> Update 8-8-14 <------

This works great with the MacAir and LACP. I have it hooked into a Netgear switch that supports LACP and into a Synology diskstation. Getting great results, pretty close to reading from a local SATA drive. I love this stuff. Can't wait for when 10 Gig comes down in price.
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13 of 13 people found the following review helpful By dw on July 1, 2013
Color Name: BlackSize Name: USB 3.0 Verified Purchase
Update: ASIX (the chip maker) has posted a new version of the driver (1.5.0) on their website that seems to work. Google "ASIX AX88179", download the driver, and follow the README. I've bumped the review up to 4 stars.

--

I bought this adapter to provide full gigabit ethernet support to my ultrabook that is sadly lacking a gigabit adapter. My main OS is Ubuntu, and despite both Startech and ASIX providing a Linux driver that compiles and loads, it has about 30% packet loss when pinging another system on the LAN and the driver eventually crashes. This is lame because I bought this *specifically* for its Linux support. I was using Ubuntu 12.04/12.10 and the ASIX driver v.1.4.0 and the Startech driver (1.3.0).

It works just fine on Windows.
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13 of 13 people found the following review helpful By JimmyMPR on December 13, 2012
Color Name: BlackSize Name: USB 3.0 Verified Purchase
Real Gigabit adapter, I used with my Lenovo Yoga 13 without any trouble. Excellent shipping and the quality of the product a plus.
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12 of 12 people found the following review helpful By Mark on March 2, 2013
Color Name: BlackSize Name: USB 3.0 Verified Purchase
I bought this to use with my Surface Pro mainly, for when I go to customer sites to for support.

I plugged the USB into the Surface Pro and an ethernet cable into the adapter and had an ip address and on the internet straight away. Not drivers installing and zero problems.

Excellent speeds and never a problem
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12 of 13 people found the following review helpful By Jeff Amfahr on October 31, 2013
Color Name: BlackSize Name: USB 3.0 Verified Purchase
When the latest version of Mac OS X (Mavericks) shipped, this stopped working. The advice from tech support was to re-install the old OS. They also said it would be several months before a new driver would be available, even though the beta had been out for developers since June.
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7 of 7 people found the following review helpful By John Feinberg on February 27, 2014
Color Name: BlackSize Name: USB 3.0 w/ pass through port Verified Purchase
Works great on my 2013 11" MacBook Air, running Mavericks. This model is the first Air with USB3, so it can take full advantage of the adapter. I do see very good throughput, spiking at the maximum gigabit ethernet speed (close to 120Mb/Sec, copying from the Air SSD to a Mac Pro SSD). I do not see sustained 120Mb/sec, but rather spikes at 120Mb/sec and troughs at 70Mb/sec. All in all, it's almost as good as the Thunderbolt ethernet adapter, and it's good to have if you want to use the thunderbolt port for something else such as video out.

Be sure to download the correct drivers. Search for AX88179 mac drivers and you'll find it. The CD that came with the device is too old, and will certainly not work with Mavericks and probably won't even work with 10.7 and 10.8. There was a driver posted 2/19/2014, so if you find something older than that then search again.
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6 of 6 people found the following review helpful By John Johansen on February 6, 2013
Color Name: BlackSize Name: USB 3.0 Verified Purchase
It is faster than the usb 2 ethernet dongle I have, and it works in Linux if you have an updated driver

You can get the driver from startech's web site
[...] and enter product USB31000S

download the drivers zip file (at the time I downloaded, it only mentioned windows and mac), unzip it, and find the linux driver dir inside.
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6 of 6 people found the following review helpful By Matt Bolick on January 11, 2013
Color Name: BlackSize Name: USB 3.0 Verified Purchase
I'm using this on a Lenovo X1 Carbon (amazing ultrabook by the way). It worked perfectly out of the box and gets GE links and is never a bottleneck. It stays in my computer bag for the times I find myself in a hotel with a wired connection and no, or spotty, wireless.
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