According to http://www.asix.com.tw/products.php?PLine=71
--- /usr/src/share/man/man4/axe.4 Mon Jun 3 00:02:33 2013 +++ /tmp/axe.4 Sun Jun 9 12:25:14 2013 @@ -84,8 +84,8 @@ .Pp The AX88172, AX88178, and AX88772 are USB 2.0 devices designed to work with either Ethernet or HomePNA transceivers. -The AX8172 and AX88772 contain 10/100 Ethernet MACs with MII interfaces. -The AX8178 contains a 10/100/1000 Gigabit Ethernet MAC with a GMII/MII +The AX88172 and AX88772 contain 10/100 Ethernet MACs with MII interfaces. +The AX88178 contains a 10/100/1000 Gigabit Ethernet MAC with a GMII/MII interface. All adapters will operate with either USB 1.x or USB 2.0 controllers, however performance with 1.x controllers will be limited since the USB 1.x standard -- Michał Markowski
