Convenient drive-bay design adds one ExpressCard/54 slot to desktop computers allowing systems to use the latest ExpressCard adapter cards Installs in any available 3.5" or 5.25" device bay (5.25" mounting rack included) Works with ExpressCard devices including Wireless Wide Area Network modems (such as CDMA, EV-DO, GPRS, etc.), SATA controllers, FireWire (400 & 800) adapters, flash card adapters, TV tuners, security, legacy I/O (PS2, serial, parallel), optical disk drives, GPS receivers, and more.