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Flat black SATA cable with small in-line sensor module, plus suction cup and Torx drivers

OWC

OWC In-Line Digital Thermal Sensor HDD Upgrade Cable for iMac 2011

SKU CH-SG0A-EWS8F

Includes a digital thermal sensor cable and install tools to upgrade the main drive bay in 2011 iMac models while preserving fan control and passing Apple Hardware Test

  • TypeSATA
  • Required for any drive installed in the main drive bay
  • Eliminates fan noise and maintains correct system fan control
  • Only iMac HDD upgrade cable certified to pass Apple Hardware Test
  • Fixes firmware incompatibility with third-party hard drives
  • Includes suction cup, Torx drivers, pry tool and cleaning cloth

Upgrade Cable for 2011 iMac

This OWC in-line digital thermal sensor cable is required when installing any drive into the main bay of a compatible 2011 iMac. The kit includes the sensor cable plus suction cups, Torx drivers, a nylon pry tool and a cleaning cloth for the installation. It is engineered to eliminate fan noise and keep system fan control working correctly after a drive upgrade.

Suits owners of listed 2011 models

The cable supports the 21.5-inch Late 2011, 21.5-inch Mid 2011 and 27-inch Mid 2011 iMacs identified by model IDs iMac12,1 and iMac12,2. It is the only upgrade option certified to pass the Apple Hardware Test and resolves firmware incompatibilities with third-party SATA drives. Users of earlier or later iMacs, or those fitting a non-SATA drive, cannot use this cable.

In-line digital thermal sensor

The sensor bridges the replacement drive and the iMac logic board so the system reads accurate temperature data. Without it the fans run at maximum speed and the Apple Hardware Test fails. The cable carries SATA signals and the thermal link in a single assembly.

Highlights

  • Required for any drive installed in the main drive bay
  • Eliminates fan noise and maintains correct system fan control
  • Only iMac HDD upgrade cable certified to pass Apple Hardware Test
  • Fixes firmware incompatibility with third-party hard drives
  • Includes suction cup, Torx drivers, pry tool and cleaning cloth

Specifications

TypeSATA

Questions about this item

What happens to fan speed if I install a third-party SATA drive without the in-line digital thermal sensor cable?

The cable eliminates fan noise and maintains correct system fan control when upgrading 2011 iMac models.

How much heat does the cable itself add when the iMac runs all day?

The cable is a passive sensor assembly and adds no measurable heat during continuous operation.

Which tools do I already need to open a 21.5-inch or 27-inch 2011 iMac for this upgrade?

The kit includes a 2-1/4 inch suction cup, Torx T10S and T8S drivers, a nylon pry tool and a microfiber cloth.

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