Check the listing for details. IPC 18" (Universal) (Rackmount Slide Rail Set) (Cabinet) (Open Rack) NEW. Condition: New. Listed at 49.95 USD. PLinkUSA / RackBuy Universal 18" Full Extension slide rail For Cabinet / Open Rack IPC-Rail18 Brand NEW IPC-Rail18 (PLinkUSA / RackBuy) PRODUCT TECHNICAL SPECIFICATIONS Unique universal design compatible with all height 1234U chassis, one unit means one pair Compatible with chassis width between 422~430mm, supported cabinet internal depth at 456.7~810mm Slide rail depth at minimum 18" (456.7mm) and maximum at 31.8" (810mm) installed with the L brackets Accessory pack: 2U/4U chassis compatible stacked bracket x4, M6 round x8, M5 round x4, M3 nut x8, M6 countersunk x8, M4 countersunk x4, M6 & M5 compatible washer x12, M3 truss x8 Installation guide United States (48 States) Please check with "Shipping and Payments" Canada (Buyer is responsibility to pay any duty and brokerage fee)