24-Channel TTL DIO USB Module
Advantech
48-Channel TTL DIO USB Module
48kS/s, 14-bit, Multi-function USB Module
5-Port Isolated High Speed USB 2.0 Hub
Autonics
Photoelectric Sensor, Door, 4 Step, 12-24VAC/DC
8+2 100FX Port M.M. Fiber Managed Switch