I/O Magic DR-CDRW446EU 4x4x6 External USB 1.1 CD-RW Drive MagicWriter 6x4x6 CD-RW External USB Drive General Features: 4x CD-R write speed 4x CD-RW rewrite speed 6x CD-ROM read speed Silver color 2MB buffer USB 1.0 Interface 180 ms average access time Anti-Vibration System Dust Protection System Value-priced Writing Formats Disc at Once Track at Once Multisession Variable and Fixed Packet Writing Media Formats: CD-ROM CD-R CD-R