UNTESTED The Maxtor DiamondMax 91391U8 13.9GB 3.5" IDE HDD is a silver internal desktop drive with a storage capacity of 13.9GB. It has a rotation speed of 5400 RPM and a cache size of 512 KB. This untested product is compatible with PCs and features a form factor of 3.5 inches, making it suitable for standard desktop setups. The drive supports HDD storage format and interface types include PATA/IDE/EIDE, with master/slave jumper settings for easy configuration. Ideal for those looking for reliable storage capacity for their computing needs.