1 inch Flodable HDD Drive - Big Capacity - 2.5GB

Complies with USB 2.0 & USB 1.1
Embedded USB 2.0UTMI tranceiver
OS Supported:               Win XP/2000/ME/98/98SE, Mac OS9.x/x
Supports 4 endpoints:       Control/Bulk Read/Bulk Write/Interrupt
Operating Shock:            175G half-sine pulse of 2ms duration
Operating Temperature:      0ºC to 65ºC Operating Humidity: 8% to 90%
Read/Write LED indicator
Capacity:                     4G
Internal Cache:             2MB
Data Transfer Rate:         7.9MB/sec. Max
Average Seek Time:         10ms
Operating current:         225mA (idle) 500mA (start-up)