This external SATA hard drive kit is an "instant" storage solution for archive backups, large-capacity portable storage, classified/sensitive data storage, or just extra disk storage. The enclosure supports Plug & Play "Hot Swapping" through the connection port with high speed data transfer, up to approx 480mb/sec. via USB 2.0. This case can support hard drive up to 500GB. This enclosure has great and compact exterior finish and has excellent heat dissipation. No fan is required. If you are looking for High End and Reliable external enclosure.