Built for the ThinkPad T series, the External Diskette Drive Cable lets you externally attach the ThinkPad T20 Diskette Drive. The result is an open internal system bay for powerful Ultrabay 2000 devices, such as CD-ROM, DVD, CD-RW, Zip, LS-120, second hard disk drive or second battery. The drive cables' economical price makes it a logical choice to help expand your ThinkPad's capabilities.