Philips 18x ReWriter External Drive, 48x, 18x, 24x, 48x, 24x, 18x Philips 18x ReWriter External Drive. CD write speed: 48x, DVD+R write speed: 18x, CD rewrite speed: 24x. CD read speed: 48x. DVD drive average random access time: 160 ms. Height: 1.65" (42 mm), Weight: 31.7 oz (900 g). Dimensions (WxDxH): 5.71 x 6.69 x 1.65" (145 x 170 x 42 mm), Minimum RAM: 128 MB, Minimum processor: Pentium 4 1GHz