Dell caddies / adapters available on request.The Dell Savvio 10K.6 300GB 2.5" SAS 10000RPM 64MB Hot Swap HDD Lot of 4 is a set of high-performance internal desktop drives specifically designed for PCs. With a rotation speed of 10000 RPM and a cache size of 64MB, these hot swap drives offer fast data transfer rates and large storage capacity. They are perfect for those looking for reliable and efficient storage solutions for their computer systems. The silver color and compact 2.5-inch form factor make them unobtrusive and easy to install in desktop configurations.