USB 2.0 10/100M Ethernet LAN ADAP AX88772A

Single chip Low-power USB 2.0 to 10/100M Fast Ethernet controller

  • PO.: ST738
  • P/N.: SU-LR8772A-BR
  • Bus Type: USB TYPE
  • Media Port: RJ45 LAN
  • Main Chipset: ASIX AX88772A


Single chip Low-power USB 2.0 to 10/100M Fast Ethernet controller


The AX88772A USB 2.0 to 10/100M Fast Ethernet controller, compliant with USB specification v1.1 and v2.0,the 10/100Mbps Ethernet LAN function based on IEEE802.3,and IEEE802.3u standard,  which enables a low cost, small form factor, and simple plug-and-play Fast Ethernet network connection capability for desktops, notebook PC's, UMPC's, cradles/port replicators/docking stations, game consoles, digital-home appliances, and any embedded system using a standard USB port.


   ● USB Device Interface

  -- Integrates on-chip USB 2.0 transceiver and SIE compliant to USB Spec 1.1 and 2.0

  -- Supports USB Full and High Speed modes with Bus-Power or Self-Power capability

  -- Supports 4 or 6 programmable endpoints on USB interface

  -- High performance packet transfer rate over USB bus using proprietary burst transfer mechanism

  -- Supports USB to Ethernet bridging or vice versa in hardware

  ● Fast Ethernet Controller

  -- Integrates 10/100Mbps Fast Ethernet MAC/PHY

  -- IEEE 802.3 10BASE-T/100BASE-TX compatible

  -- Supports twisted pair crossover detection and auto-correction (HP Auto-MDIX)

  -- Embedded 16KB SRAM for RX packet buffering and 8KB SRAM for TX packet buffering

  -- Supports both Full-duplex with flow control and Half-duplex with backpressure operation

  -- Supports 2 VLAN ID filtering, received VLAN Tag (4 bytes) can be stripped off or preserved

  -- MAC/PHY loop-back diagnostic capability

  ● Support Wake-on-LAN Function

  -- Supports Suspend mode and Remote Wakeup via Link-up, Magic packet, MS wakeup frame and external pin

  -- Optional PHY power down during Suspend mode

  ● Supports automatic loading of Ethernet ID, USB Descriptors and Adapter Configuration from EEPROM after power-on initialization

General specification
Controller-processorASIX AX88772A
Applicable NetworkIntegrates 10/100Mbps Fast Ethernet MAC/PHY
Upstream portUSB TYPE A
Downstream portRJ45 copper (LAN)
Transmission rate10/100/Mbps
Jumbo frame9K bytes
Network topologyIEEE 802.3 10BASE-T/100BASE-TX 
IEEE 802.1P Layer 2 Priority Encoding, IEEE 802.1Q VLAN tagging, IEEE 802.3az-2010 (EEE)
System requirements

Windows Server2003 / XP / Vista / Windows 7/ Windows 8 / Windows 8.1 / Windows 10 (32/64bit)

DOS, Linux, MAC OS

Hardware & environment

LED IndicatorsN/A
MaterialPlastic shell
CertificationsFCC, CE, RoHS
Operating temperature0℃ -- 70℃
Storage temperature-55 °C -- +125 °C
Relative humidity5%--95% Non-condensing

Packing Accessories list

1 x USB 2.0 to Fast Ethernet LAN adapter

1 x User's Manual
1 x CD Driver


Only the above package contents, other products are not included. 

The allowable error of size measurement is +/- 1~3mm, and the weight of the product is subject to the actual product. 

DimensionsL x W x mm
Package SizeL175 x W125 x H30mm (Built-in blister)
Product weight g
Package weight




PO#P/NSpecificationsOrdering Note
ST738SU-LR8772A-BTUSB 2.0 to Fast Ethernet LAN adapter  
Based on ASIX AX88772A Ethernet Controller


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