BenQ 656a 56x oem black Bulk, White, 128 MB, 8400 MB/s, 56x, 90 ms, 15 - 90% BenQ 656a 56x oem black Bulk. Product color: White. Drive device, buffer size: 128 MB, Burst transfer rate: 8400 MB/s. CD read speed: 56x. Access time: 90 ms. Weight: 2.2 lbs (1 kg)