This SAS drive is for SERVER only and will not work with a desktop - server or workstation only. The ST4000NM0025 Seagate EMC 118000259 4TB SAS 3.5 HDD is a high-performance internal desktop drive designed for server use. With a storage capacity of 4TB and a rotation speed of 7200 RPM, this silver-colored HDD from Seagate offers reliable storage solutions for businesses and individuals. Featuring hot swap capabilities and a cache of 128MB, this unit is ideal for those looking for a dependable and efficient hard drive for their computing needs. Designed in a 3.5-inch form factor and with a SAS interface, this Seagate drive is a versatile and top-notch choice for storage requirements.