USB-C Fast Ethernet Fiber SFP ADAP AX88772C

USB C ASIX AX88772C Fast Ethernet Fiber adapter. Single chip USB 2.0 to MII, single chip MII to Ethernet and USB Bridging controller in Dual-PHY mode

  • PO.: ST716
  • P/N.: SU-LR8772A-FB
  • Bus Type: USB TYPE
  • Media Port: SFP LC Fiber
  • Main Chipset: ASIX AX88772C

USB C ASIX AX88772C Fast Ethernet Fiber adapter

Single chip USB 2.0 to MII, single chip MII to Ethernet and USB Bridging controller in Dual-PHY mode


The AX88772C USB 2.0 to 10/100M Fast Ethernet controller with Microsoft AOAC(Always On Always Connected) support is a high performance and highly integrated ASIC which enables a low cost, small form factor, and simple plug-and-play Fast Ethernet network connection capability for desktops, notebook PCs, Ultrabooks, cradles/port replicators/docking stations, game consoles, digital-home appliances, and any embedded system using a standard USB port.


   ● Single chip USB 2.0 to 10/100M Fast Ethernet controller

   ● Single chip USB 2.0 to RMII, support HomePNA and HomePlug PHY

   ● Single chip USB 2.0 to Reverse-RMII, supports glueless MAC-to-MAC connections

   ● 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 endpoints on USB interface

  -- Supports AutoDetach power saving, Detach from USB host when Ethernet cable is unplugged

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

  ● Fast Ethernet Controller

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

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

  -- IEEE 802.3 100BASE-FX compatible

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

  -- Embeds SRAM for packet buffering

  -- Supports IPv4/ IPv6 packet Checksum Offload Engine to reduce CPU loading, including IPv4 IP/TCP/UDP/ICMP/IGMP & 

      IPv6 TCP/UDP/ICMPv6 checksum check & generation

  -- Supports full duplex operation with IEEE 802.3x flow control and half duplex operation with back-pressure flow control

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

  -- PHY loop-back diagnostic capability

  -- Supports Multiple unicast MAC destination address filter

  ● Support Wake-on-LAN Function

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

  -- Supports Protocol Offloads (ARP & NS) for Windows 8 and 7 Networking Power Management

  -- Optional PHY power down during Suspend mode

  -- Supports 32 bitmap Wake on LAN Patterns

  -- Supports Wake Packet Indication

  -- Supports Receive Filter Wakeup

  ● Versatile External Media Interface

  -- Optional RMII interface in MAC mode allows AX88772C to work with HomePNA and HomePlug PHY

  -- Optional Reverse-RMII interface in PHY mode allows AX88772C to support glueless MAC-to-MAC connections

  ● Advanced Power Management Features

  -- Supports dynamic power management to reduce power dissipation during idle or light traffic period

  -- Supports very low power Wake-on-LAN (WOL) mode when the system enters suspend mode and waits for network event to 

      wake it up

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

General specification
Controller-processorASIX AX88772C
Applicable NetworkUSB 2.0 Fiber optic Network
Upstream portUSB C 
Downstream portSFP LC
Transmission rate100Mbps
Network topologyIEEE 802.3 10Base-T/100Base-TX, IEEE 802.3 100BASE-FX 
Integrates 10/100Mbps Fast Ethernet MAC/PHY
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 + metal fiber
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 Fiber 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. 

DimensionsL71 x W45 x 18mm
Package SizeL175 x W125 x H30mm (Built-in blister)
Product weight g
Package weight




PO#P/NSpecificationsOrdering Note
ST716SU-LG8772A-FBUSB 2.0 to Fast Ethernet Fiber adapter  
Based on ASIX AX88772C Ethernet Controller


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