DK23FB-40 Hitachi Travelstar Hard Drive DK23FB-40 The Hitachi Travelstar series adopts the magnetic recording technique of advancement and actualizes bulk advanced high reliability, adjusting to the needs of the various information equipment. Interface: IDE (ULTRA DMA/100). Capacity: 40 GB. Spindle speed: 5400 RPM. Buffer: 8 MB. Access time: 13 ms Form factor width: 2.5 in