SeagateST500LM021 – Laptop Thin ST500LM021 Hard Drive – Hard drive – 500 GB – internal – 2.5" – SATA 6Gb/s – 7200 rpm – buffer: 32 MB

Seagate ST500LM021 – Laptop Thin ST500LM021 Hard Drive – Hard drive – 500 GB – internal – 2.5" – SATA 6Gb/s – 7200 rpm – buffer: 32 MB

Seagate 500GB 2.5 inch Laptop Solid State Hybrid Drive

Hitachi (HGST) 500GB 2.5 Inch 5400rpm SATA3 (6Gbps) 16MB Cache Hard Drive, Thin 7mm For Laptop, PS3, PS4, CCTV, iMac, Macbook - 2 Year Warranty - 500 GB HDD