OWC Digital Thermal, SMC Compatible in-line solution for all Apple 2009-2010 iMac 21.5in and 27in Models. Upgrade your iMac with any SATA drive. No Software hacks, AHT Diagnostic compatible. Hard drive sold separately. 1 Year OWC Limited Warranty
OWC In-line Digital Thermal Sensor for iMac 2009-2010 Hard Drive Upgrade is the only hardware digital thermal sensor on the market allowing a third-party SATA drive to be installed in your iMac. The OWC in-line Digital Thermal Sensor is designed specifically for Mac and requires no software hacks and ensures compatibility with Apple's built-in diagnostic processes.