Vinpower Digital Karaoke Mix Pro SATA CD+G/DVD/CD. Hard drive capacity: 250 GB, Supported hard disk drive interfaces: Serial ATA. DVD+R write speed: 22 x, DVD+R Double Layer write speed: 12 x, DVD-R write speed: 22 x. Input voltage: 90 - 240 V, Power supply: 500 W. Operating relative humidity range: 20 - 80 %, Operating temperature range (T-T): 5 - 40 °C. Dimensions (WxDxH): 189 x 340 x 302 mm, Weight: 6400 g