The Quantum Fireball TM 2110S TM21A2F1 2.1GB internal desktop drive is a SCSI hard disk drive with a 50-pin interface, designed for high-speed data storage and retrieval. It features a fast 4500 RPM rotation speed and a sleek 3.5-inch form factor, making it suitable for various desktop and server applications. With a temperature sensor for monitoring, this Quantum drive comes with a 3-year manufacturer's guarantee and is compatible with NAS, PC, Memory Vault, and Mac systems, offering reliable storage solutions for a range of computing needs.KHHB02