Western Digital RE4 is an HDD (Hard Disk Drive) with 3.5", 3.5" x 1/3H (Low Profile) Hard Drive Form Factor and Internal enclosure. Featuring 2000 GB memory capacity and 65536 KB buffer size, the RE4 model provides storage space for the user's data. The device connects through SAS, SATA II interface and has a spindle speed of 7200 RPM, ensuring efficient operation. The Western Digital hard drive's dimensions are 1.03 inch height, 4 inch width, 5.79 inch depth, and its weight is 1.65 lbs.