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Hello from Russia! Can u tell me what the difference between 821-1492-01 and 821-1492-A? I got MBP 15 Mid 2012 and i tried to install 3 different SSD, and they all not recognized. All firmwares updated to the last version. Guys from iFixit forum tells me that i need to change this Sata cable because its old, and i need to find “01” version. I can buy only from ebay and aliexpress, where all customers only got “A” version and dont know is it support sata 3 or no… Plz help me to figure it out…
@mayer - Here is what we use for the 13" note the description field info: Unibody MacBook Pro 13" HD/Sleep/IR bracket & cable (2012) Apple PN 821-2049 ($50 US Here’s the full HD cable rundown for the 13" Unibody 821-2049 (Supports SATA III drives)821-1480821-00698923-0741604-07597923-00975923-0104 For the 15" series there are a few different cables depending on the year here is the the list for them: ’09 (SATA II drives only)922-9034821-0812821-0989-A’10 (SATA II drives only)922-9314821-0989’11922-9751821-1198-A (Supports SATA III drives)’12923-0084821-1492-A (Supports SATA III drives, but some don’t appear to hold up)821-1492-01 (Supports SATA III drives)
There are two different cable versions of this Cable: 821-1492-01 (was recommended) 821-1492-A (what you have) They Are Backwards-Compatible, yes. You aren’t losing anything by using your A version.
