Pruthvik™ 3.5" USB External Floppy Disk Drive Portable 1.44 MB FDD for PC Windows 2000/XP/Vista/Windows 7/8/10, No External Driver, Plug and Play 3.5" USB External Floppy Disk Drive Portable 1.44 MB FDD for PC Windows 98/ME/2000/XP/Vista/Windows 7&8 +Dust External Bag Case,Protect your drive Scratch-Resistant,No Need to Install Drive with CD,Plug and Play  Specifiaction:  - USB Interface  - 3.5-inch 720KB/1.44MB FDD  - Super Slim and lightweight  - Available USB Bus supply current: 500 mA or less  - Data capacity:720KB/1.44MB (Formatted)  - USB DATA Transfer Rate: Full speed/12 Mbps  - Data Transfer Rate:250 Lbits(720KB)/500 Kbits (1.44MB)  - Number of Cylinders; 80  -Rotation speed:300 rpm,360 rpm recording method:MFM  - Media: High Density (2HD) OR Normal Density (2DD)  - Average Latency Time:100 MSEC (1.44MB mode) 83.3 MSEC (720KB mode)  - Operating systems supported: Windows 98/SE/2000/ME/XP/VISTA/Windows 7/Windows 8,Note: it's not compatible with MAC.  Operating temperature:  - Between 4 degrees Belsius and 51 degrees Celsius  - Between 39 degrees Fahrenheit and 125 degrees Fahrenheit  Relative humidity:  - Operating:between 20% and 80%  Hardware requirements  - Computer with USB Port  - USB Universal Host Control  Package Included:  1x External USB Floppy Disk Drive  1x English User ManualNote When Use:  For running smoothly,Please plug our external floppy disk drive into rear USB interface of motherboard directly. If you connect our floppy drive through USB hub,USB extension cable or frontal USB interface,it may can not be recognized by your computer because it cannot get sufficient power from them.