Memorex 32023261 USB 2.0 CD-RW Drive (52x/32x/52x) External CD-RW drive with high-speed USB 2.0 interface (USB 1.1 compatible) 52x maximum CD-R write speed, 32x maximum CD-RW rewrite speed 52x maximum CD-ROM read speed Uses Smart-Burn technology to monitor media quality and set optimal burning speeds Includes blank recordable media and CD-burning software (Nero 5.5, InCD)