RDX Cartridge Hard Drive make your data backup easier, faster, more reliable and more secure. Its enterprise class features provide the data protection of large IT data centers, so it can support your company as it grows, and all at an affordable price. This hard drive is designed to protect your business valuable assets. It uses a rugged, removable disk cartridge and docking station that backs up just like a tape drive. And you'll never run out of storage space, simply add more removable cartridges as your data needs expand.