StarTech USB 2.0 to Gigabit Ethernet NIC Network Adapter (USB21000S2)

3.8 out of 5 stars 106 ratings

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  • Compatible with Gigabit Ethernet networks and powered via USB for versatility and portability as an add-on or replacement
  • The Gigabit USB adapter helps conserve system resources, using built-in NDIS6 Checksum and Large Send Offload support and Jumbo Frames
  • The USB Gigabit Ethernet adapter is backed by a StarTech 2-year warranty and free lifetime technical support, ensuring reliability
  • USB to RJ45 adapter supports Gigabit networking over USB 2.0 with up to 480 Mbps of bandwidth
  • IEEE 802.3, 802.3u and 802.3ab (10BASE-T, 100BASE-TX, and 1000BASE-T) compatible
  • Jumbo Frame support up to 9 KB
  • Powered directly from the USB ports
  • Supports Microsoft NDIS 6.2 Checksum Offload (IPv4, IPv6, TCP, UDP) and Large send Offload

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Customer Rating 3.8 out of 5 stars (106) 4.3 out of 5 stars (1010) 4.6 out of 5 stars (4236) 4.4 out of 5 stars (10163) 4.6 out of 5 stars (11286) 4.6 out of 5 stars (3833)
Price From $34.99 $21.95 $12.99 $19.14 $15.49 $14.99
Sold By Available from these sellers Plugable Technologies Amazon.com Amazon.com UGREEN GROUP LIMITED Cable Matters
Item Dimensions 6.69 x 5.51 x 1.18 inches 10.50 x 1.25 x 0.75 inches 2.80 x 1.00 x 0.60 inches 7.04 x 0.63 x 0.94 inches 2.40 x 0.71 x 1.02 inches 5.50 x 2.80 x 0.65 inches

Product description

USB21000S2 Alternate View
Add Gigabit Ethernet to any USB 2.0 compatible PC or Laptop computer
USB21000S2 Alternate View
The Gigabit USB adapter helps conserve system resources, using built-in NDIS6 Checksum and Large Send Offload support and Jumbo Frames
USB 2.0 to Gigabit Ethernet NIC Network Adapter

The USB21000S2 USB 2.0 to Gigabit Ethernet Adapter offers a reliable USB Ethernet connection, adding a single RJ45 Ethernet port to a USB-enabled computer system, with support for connecting to Gigabit networks.

Backward compatible with older USB 1.x computer systems, this compact and portable USB Gigabit network adapter offers an ideal desktop replacement network adapter or laptop accessory. With support for features such as Jumbo Frames, VLAN tagging and Wake on LAN (WOL), the adapter is suitable for home and business users alike.

The USB21000S2 USB Gigabit network 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 2.0 with up to 480 Mbps of bandwidth
  • IEEE 802.3, 802.3u and 802.3ab (10BASE-T, 100BASE-TX, and 1000BASE-T) compatible
  • Powered directly from the USB ports
  • Jumbo Frame support up to 9 KB
  • Supports Microsoft NDIS 6.2 Checksum Offload (IPv4, IPv6, TCP, UDP) and Large send Offload
  • Crossover Detection & Auto-Correction (Auto MDIX)
  • IEEE 802.1Q VLAN Tagging support
  • Embedded 20KB SRAM for packet buffering
  • Activity and Gigabit 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 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


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Warranty & Support

Amazon.com Return Policy:You may return any new computer purchased from Amazon.com that is "dead on arrival," arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. Amazon.com reserves the right to test "dead on arrival" returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned computer that is damaged through customer misuse, is missing parts, or is in unsellable condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. Amazon.com will not accept returns of any desktop or notebook computer more than 30 days after you receive the shipment. New, used, and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.

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3.8 out of 5 stars
3.8 out of 5
106 global ratings
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Top reviews from other countries

Andrew Gough
5.0 out of 5 stars Reliable unlike some others!
Reviewed in the United Kingdom on January 27, 2017
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Mr T
4.0 out of 5 stars Good product
Reviewed in the United Kingdom on March 7, 2014
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2 people found this helpful
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mageye
4.0 out of 5 stars Lightning (nearly!)
Reviewed in the United Kingdom on December 12, 2014
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Lee
2.0 out of 5 stars Meh
Reviewed in the United Kingdom on March 28, 2015
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fords
4.0 out of 5 stars Four Stars
Reviewed in the United Kingdom on September 28, 2016
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