2BU4791 - HP 507750-B21 500 GB 2.5quot; Internal Hard Drive<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Hard_Drive_Interface - SATA/300</li><li>Maximum_External_Data_Transfer_Rate - 300 MBps 2.3 Gbps</li><li>Sata_Pin - 7-pin</li><li>Drive_Width - 2.5"</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31J32zOiX4L.jpg" noproxy>