Connect 5 devices with this pocket-sized Fast Ethernet 10/100 Mbps network switch. Conveniently powered via micro USB and featuring IP175G chip-set.
Industrial Ethernet Switches
MICROSENS - 6-Port GbE Micro Switch G6
is intended for use in applications where even the weight or size of an RJ45 connector is too much. This very small ethernet switch has 5 ports,
GigEthos Lite
Wave 5 Port Industrial Gigabit Ethernet Switch - Micro Robotics
Ethernet Adapter, TSV Ethernet Adapter/Micro USB to RJ45 Ethernet
NETGEAR ProSafe JGS516 16-port Gigabit Ethernet Switch - Micro Center
China Micro Gigabit RJ45 Industrial Ethernet Switch 4 Port 10/100M
IEC-61850-3 Ethernet Switch - Dynalog India
MICROSENS - 6-Port GbE Medical Micro Switch TP G6
2X Micro-USB Network Card Ethernet Adapter Micro-USB To 100M
Ethernet MICRO Adapter Linux MacOS Nitendo Switch ASIX AX88772B
Willy Tarreau's stuff: Gigabit Ethernet Everywhere