Screwless 3.5" HDD Brackets. Easy drive mounting with 24 screwless rails. 4U Rackmount Server Chassis. Support EEB (12"x13"), CEB(12"x10.5"), ATX (12"x9.6"), Micro ATX (9.6" x 9.6") Mini ITX (6.7" x 6.7") motherboard.
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