The part is different. Why don't you use the correct parts here. IFIXIT has it as well as others.
21.5" - 2.5" HD
* SATA Cable P/N: 923-0283
* Power Cable P/N: 923-0282
27" - 3.5" HD
-
* HD & Power cable assembly: 923-0312
+
* HD & Power Cable Assembly: 923-0312
-
Both cable sets are for the Late 2012 models. As far as I know the newer 5K Retina model uses the same cable. Which you can see here: [https://d3nevzfk7ii3be.cloudfront.net/igi/dAJHcXYZTeGLiceF|27" 5K Retina 3.5"] Vs the [https://d3nevzfk7ii3be.cloudfront.net/igi/mgLpSF2KI4WjKEGm|21.5" 2.5" drive]
+
Both cable sets are for the Late 2012 models. As far as I know the newer 5K Retina model uses the same cable. Which you can see here: [https://d3nevzfk7ii3be.cloudfront.net/igi/dAJHcXYZTeGLiceF|27" 5K Retina 3.5" drive] Vs the [https://d3nevzfk7ii3be.cloudfront.net/igi/mgLpSF2KI4WjKEGm|21.5" 2.5" drive].
The part is different. Why don't you use the correct parts here. IFIXIT has it as well as others.
21.5" - 2.5" HD
* SATA Cable P/N: 923-0283
* Power Cable P/N: 923-0282
27" - 3.5" HD
* HD & Power cable assembly: 923-0312
-
Both cable sets are for the Late 2012 models. As far as I know the newer 5K Retina model used the same cable. Which you can see here: [https://d3nevzfk7ii3be.cloudfront.net/igi/dAJHcXYZTeGLiceF|27" 3.5" 5K Retina] Vs the [https://d3nevzfk7ii3be.cloudfront.net/igi/mgLpSF2KI4WjKEGm|21.5" 2.5" drive]
+
Both cable sets are for the Late 2012 models. As far as I know the newer 5K Retina model uses the same cable. Which you can see here: [https://d3nevzfk7ii3be.cloudfront.net/igi/dAJHcXYZTeGLiceF|27" 5K Retina 3.5"] Vs the [https://d3nevzfk7ii3be.cloudfront.net/igi/mgLpSF2KI4WjKEGm|21.5" 2.5" drive]
The part is different. Why don't you use the correct parts here. IFIXIT has it as well as others.
-
21.5"
+
21.5" - 2.5" HD
+
* SATA Cable P/N: 923-0283
* Power Cable P/N: 923-0282
-
27"
+
27" - 3.5" HD
+
* HD & Power cable assembly: 923-0312
-
Both cable sets are for the Late 2012 models
+
Both cable sets are for the Late 2012 models. As far as I know the newer 5K Retina model used the same cable. Which you can see here: [https://d3nevzfk7ii3be.cloudfront.net/igi/dAJHcXYZTeGLiceF|27" 3.5" 5K Retina] Vs the [https://d3nevzfk7ii3be.cloudfront.net/igi/mgLpSF2KI4WjKEGm|21.5" 2.5" drive]