Mfr P/N: ST4000NM0035 | OWC SKU: SEAST4000NM0035
3.5-inch 7200RPM SATA 6.0Gb/s (3.0Gb/s and 1.5Gb/s backwards compatible) Hard Drive with 128MB Cache. Seagate 5 Year Limited Warranty.
Mfr P/N: MQ04ABB400 | OWC SKU: TOSMQ04ABB400
with 128MB cache. Toshiba 3 Year Limited Warranty.
Mfr P/N: YIMAC212H4.0 | OWC SKU: OWCYIMAC212H4.0
Includes new hard drive and all tools & parts to complete installation of included 4TB drive into your Apple iMac. Pre-certified and formatted. 2 Year OWC Limited Warranty.