[Durable material] - made of stainless steel material, durable and sturdy, with detachable design. | [Convenient to use] - with 1x 12cm cooling fan install slot space, hard drive cage adapter tray rack bracket. | [Detachable design] - it can be splitted, let you experience the fun of DIY, convenient to storage. | [Suitable] - fits for host case which CD-ROM Slot InWall is flat, or bracket installation type CD-ROM Slot. | [Package includes] - 1 PC x hard drive cage, 1 PC x mounting screw pack, 1 PC x screwdriver (random color), 1 PC x manual, 10 Pcs X guide rail.