Need to properly mount your HP storage array in a server rack? This is a refurbished HP sliding rail kit, part number 457637-001 (also known as FHDW013-03). It's designed for HP storage systems like the P2000, MSA1040/1050/2040/2050, and VLS9000 series. The rails are 19-inch standard size and allow you to slide the heavy unit in and out of the rack smoothly. Condition is listed as \Very Good - Refurbished,\ so it's been tested and cleaned. No original manufacturer warranty is included. Description is in German, but the part is universal. An essential and often expensive accessory if you're setting up a home lab, small business server room, or need to replace missing rails. Make sure your server model is compatible before ordering!