Connect and hot swap four 3.5in SATA III or SAS II hard drives to your computer system in three 5.25" bays, with support for transfer speeds up to 6 Gbps -Solid aluminum construction -Key lock design -Built-in fan -4 drive bay design -Installs in three 5.25" drive bays The HSB4SATSASBA Removable 4-drive Backplane makes inserting and removing drives fast and easy, by turning three 5.25" bays into a hot-swappable interface for up to four 3.5" SATA or SAS hard drives (HDD). For added versatility, the hot swap bay can interface with SATA I/II/III and SAS I/II hard drives -- an ideal solution for enterprise system applications. For a quick and secure method of installing and removing drives, the backplane features ejection levers and a key-lock design. To help prevent drive failure, the bay provides drive cooling with a built-in fan and excellent heat dissipation with a vented aluminum enclosure. The HSB4SATSASBA is backed by a StarTech.com 2-year warranty and free lifetime technical support. https://elecena.pl/product/18230201/hsb4satsasba-4-bay-hot-swap-mobile-rack-backplane 2021-05-02 https://elecena.pl/product/18230201/hsb4satsasba-4-bay-hot-swap-mobile-rack-backplane 2022-06-23 https://elecena.pl/product/18230201/hsb4satsasba-4-bay-hot-swap-mobile-rack-backplane 2022-07-24 https://elecena.pl/product/18230201/hsb4satsasba-4-bay-hot-swap-mobile-rack-backplane 2023-04-19 https://elecena.pl/product/18230201/hsb4satsasba-4-bay-hot-swap-mobile-rack-backplane 2025-04-04 https://elecena.pl/product/18230201/hsb4satsasba-4-bay-hot-swap-mobile-rack-backplane 2026-01-17