Epson PP-100AP. DVD+R write speed: 12 x, DVD+R Double Layer write speed: 8 x, CD-R write speed: 40 x. Compatible operating systems: CPU 41.4GHz, 512MB (Windows 2000, XP), 1GB (Vista, 7), HDD 10GB, XGA, USB. Input voltage: 100 - 240 V, Input frequency: 50 - 60 Hz. Operating relative humidity range: -20 - 80 %, Operating temperature range (T-T): -10 - 35 °C. Dimensions (WxDxH): 377 x 465 x 348 mm, Weight: 22000 g