HP 3.5-Inch 4000 GB Hot-Swap 2 MB Cache Internal Hard Drive 693687-B21<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Designed and Engineered to Provide Reliable and Cost Efficient Data Storage</li><li>Capacity: 4 TB</li><li>Form Factor: 3.5" LFF</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51n2FcjyDsL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51mSpBTlojL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41bSZKicGEL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41-Vecl7qUL.jpg" noproxy>