This Seagate Savvio 10K.6 300 GB SAS 2 hard drive is a hot-swappable, enterprise-grade unit with a 2.5-inch form factor. It supports HDD drives and has a rotation speed of 10,000RPM with a cache size of 64MB. This unit is compatible with Cisco OEM SAS drives and is designed for enterprise machines. It has been used before and is in great working condition. This product meets all the storage needs of a business, and it comes with a California Prop 65 warning about its chemical contents. The silver-colored Seagate hard drive is a reliable and efficient option for any business looking to upgrade its storage.