The WiebeTech RTX100H-INT can be used without the use of trays, simply slip in a SATA drive and shut the doorAll-metal construction. The RTX100H-INT is the hardened bay that features 2 LEDs for power and access. Standard 5.25" internally mountable bay (same size as most CD-ROM drives), a spare internal SATA port is required. Bay is lockable for added security. The shock absorbing bay helps protect your drives against jolts, specially-designed SATA connector is designed for thousands of drive insertions.