Hitachi Travelstar 7K60
This is a 60GB, 7200RPM 2.5" disk, model HTS726060M9AT00, manufactured by Hitachi.
Models shipped with this disk
Firmware
On some ThinkPad models, you must buy the IBM-branded version of this drive, since the Hitachi-branded version has an incompatible and unupgradable firmware (see Problem with non-ThinkPad hard disks).