This Seagate Constellation ES 4TB internal hard disk drive is a high-quality option for those in need of storage capacity. With a 7200 RPM rotation speed and 128 MB cache, this drive is compatible with servers and features a low noise level. The 3.5 inch form factor and SAS interface make it easy to install and integrate into your system. Additionally, this drive is designed with a silver color and measures 5.87 inches in length, 4.01 inches in width, and 1.03 inches in height. It is a HDD only storage format and supports HDD drive types. The model number is ST4000NM0043 and it belongs to the Constellation product line. This internal drive is a great choice for those in need of storage capacity and are looking for a reliable and efficient option.