COHK New Hard Drive Flex Cable 821-1226-A for 13'' A1278 MacBook Pro 2011 Replace that damaged Hard Drive Flex Cable! This Parts Connects hard drive to logic board. Model Number: 821-1226-A Condition: Brand New, not used Compatibility: 13'' A1278 MacBook Pro 2011 30 Days Money Back Guarantee. Any questions, please feel free contact us.