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1.0TB Genuine Hard Disk Drive

System Pull | OWC Tested

3.5-inch | 7,200RPM
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Release Candidate (RC) firmware set

There are two kinds of firmware for SSDs Mass Production (MP) and Release Candidate (RC). Prior to an MP firmware release, there are beta firmware releases and an RC firmware release. Often, the RC is the same as the MP release, however there can be small changes and bug fixes made between the two. OWC has evaluated the RC for the 6Gb/s SandForce 2281 Processor and found it to be stable with no issues reported during our testing. However, as with any evolutionary product, issues may surface as different usages and configurations are employed and it is important to understand that there will be further updates and revisions.

Since no firmware update is currently offered for the OWC Mercury EXTREME Pro 6G SSD, no update page exists. To see the typical steps involved with a self performed field firmware update, please visit our 3Gb/s product update page at: http://eshop.macsales.com/Customized_Pages/Framework.cfm?page=sf_firmware.html

It is important to note that the current firmware update tool requires the use of Windows XP/Vista/7. OWC is currently working on a Mac OS based update tool, but we do not have an exact availability date.

1.0TB Apple Genuine Hard Disk Drive Specifications:


Form Factor
Standard 3.5"
SATA 6.0 Gb/s
1.0 TB
Formatted Capacity
Rotational Speed
SMART Attributes
Manufacturer Model Number
RoHS Compliant


Height (max)
2.6 cm (1.0 in)
Width (max)
10.2 cm (4.0 in)
Length (max)
14.7 cm (5.8 in)

Environmental (Operating)

-304.8 m to 3,048.0 m (-1,000 ft to 10,000 ft)
8% to 90% non-condensing

Environmental (Non-Operating)

-304.8 m to 12,192.0 m (-1,000 ft to 40,000 ft)
5% to 95% non-condensing
  • 1GB = 1,000,000,000 bytes. Total accessible capacity varies depending upon operating environment (typically 5-10% less). The actual total capacity will depend on your own defined file settings/preferences. 
  • In terms of standard gigabytes, 1GiB ≈ 1.074GB and refers to the actual formatted capacity of shown under Mac OS 10.5 or earlier and Microsoft Windows OS.
Manufacturer provided specifications for Apple p/n HD35IM17T1.0


  • (1) Bare Hard Drive
Apple 1.0TB Genuine Hard Disk Drive Mfr P/N: HD35IM17T1.0 OWC SKU: APLHD35IM17T1.0 from 27-inch iMac 2013-2016 90 Day OWC Fulfilled Limited Warranty Ships: Same Day Only $150.00Garage Sale Price $28.75
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