Design
Product colour	Silver
Chipset	Realtek RTL8153
LED indicators	Activity, Link, Power
Internal
Logistics data
Harmonized System (HS) code	85176990
Master (outer) case width	514 mm
Master (outer) case length	329 mm
Master (outer) case height	225 mm
Products per master (outer) case	250 pc(s)
Network
Maximum data transfer rate	2000 Mbit/s
Networking standards	IEEE 802.1Q, IEEE 802.3, IEEE 802.3ab, IEEE 802.3az, IEEE 802.3u, IEEE 802.3x
Ethernet LAN data rates	10,100,1000 Mbit/s
Cabling technology	10/100/1000BaseT(X)
Jumbo frames	9000
Maximum operating distance	100 m
Ethernet LAN
Auto MDIX IEEE
Full duplex
Jumbo frames support
VLAN tagging
Operational conditions
Operating temperature (T-T)	0 - 70 °C
Storage temperature (T-T)	-55 - 125 °C
Operating relative humidity (H-H)	20 - 90%
Other features
Housing material	Aluminium
Quick start guide
Flow control support
Packaging data
Package width	126 mm
Package depth	188 mm
Package height	22 mm
Package weight	100 g
Ports & interfaces
Connectivity technology	Wired
Host interface	USB
Interface	Ethernet
Ethernet LAN (RJ-45) ports	1
USB version	3.2 Gen 1 (3.1 Gen 1)
System requirements
Windows operating systems supported	Windows 10, Windows 10 Education, Windows 10 Education x64, Windows 10 Enterprise, Windows 10 Enterprise x64, Windows 10 Home, Windows 10 Home x64, Windows 10 IOT Core, Windows 10 Pro, Windows 10 Pro x64, Windows 10 x64, Windows 7, Windows 7 Enterprise, Windows 7 Enterprise x64, Windows 7 Home Basic, Windows 7 Home Basic x64, Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate, Window
Mac operating systems supported	Mac OS X 10.10 Yosemite, Mac OS X 10.11 El Capitan, Mac OS X 10.12 Sierra, Mac OS X 10.13 High Sierra, Mac OS X 10.14 Mojave, Mac OS X 10.7 Lion, Mac OS X 10.8 Mountain Lion, Mac OS X 10.9 Mavericks, Mac OS X 13.0 Ventura
Other operating systems supported	ChromeOS
Server operating systems supported	Windows Server 2003, Windows Server 2008 R2, Windows Server 2012, Windows Server 2016, Windows Server 2019
Linux operating systems supported
Weight & dimensions
Width	24.9 mm
Depth	66 mm
Height	17 mm
Weight	36 g

The Startech.com USB31000SA is a USB network adapter with Gigabit Ethernet functionality, which adds an RJ45 port for wired network connection via a USB port on a computer. The device is specifically designed for mobile devices such as MacBook, Chromebook, or Tablets that lack an integrated Ethernet port, enabling stable and fast access to local networks. It features an aluminium housing in silver finish, which is both aesthetically appealing and robust, and is compact enough to be carried as laptop accessory. Power supply is provided directly through the host USB port, eliminating the need for an external power adapter.

Applications
This adapter is suitable for office and home applications where a reliable wired network connection is required. It is particularly useful for users of slim laptops or tablets who rely on a stable connection to a local network or server, such as during large file transfers, network printer usage, or video conferencing. Support for 10/100/1000BaseT(X) enables use in existing network infrastructures with varying data transfer rates.

Functions and Equipment in Detail
The adapter uses the Realtek RTL8153 chipset, ensuring reliable performance and native driver support. This means no additional software installation is required once the device is connected. The LED indicators for power (blue), link (green), and activity (amber) allow visual monitoring of operational status. Support for Auto-MDIX ensures the device works with both crossover and straight-through cables without requiring switching. Jumbo frames support up to 9000 bytes improves efficiency when transferring large data volumes.

Technology Explained Simply
The adapter operates via a USB 3.2 Gen 1 (3.1 Gen 1) interface, enabling a maximum data transfer rate of 2000 Mbit/s. This bandwidth is sufficient to support full Gigabit Ethernet performance (1000 Mbit/s), with actual network speed limited by the network infrastructure in use. Full-duplex support allows simultaneous data transmission and reception, increasing efficiency. Energy Efficient Ethernet (EEE) technology reduces power consumption when no data is being transmitted. The maximum range is 100 meters when using twisted-pair cables.

Compatibility and Accessories
The adapter is compatible with a wide range of operating systems, including Windows 7 to 11, Windows Server 2003 to 2022, macOS 10.7 to 15.0, Linux kernel from 2.6.25 (LTS versions only), and Chrome OS. Support for VLAN tagging (IEEE 802.1Q) enables use in networks with VLAN structures. The Wake-on-LAN function allows the computer to be powered on remotely via the network. The included quick start guide supports installation.

Installation and Mounting
Installation is done by simply plugging the adapter into a USB port. Native driver support ensures the device is immediately recognized and operational. No additional driver download is required. Power is supplied via the USB port, so no external power supply is needed. The compact design and low weight of 36 g make the adapter an ideal travel companion.

Advantages in Operation
The adapter provides a stable wired connection that is independent of WLAN signals and thus less susceptible to interference or latency. Support for jumbo frames and full-duplex increases data transfer efficiency. The integrated LED indicator enables quick diagnosis of connection issues. The use of the Realtek chipset ensures reliable and high-performance network connectivity. The operating temperature range of 0 to 70 °C and storage temperature range of -55 to 125 °C make the adapter suitable for a wide range of operating conditions.