How to Replace MacBook Pro Optical Drive with SSD: EveryMac.com
Photo tutorial: Upgrading a MacBook Pro with an SSD
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Cable Plus HDD SSD SATA Hard Drive Connector for MacBook Pro Unibody 13" A1278 MacBookPro7,1 Mid 2010: MC374LL/A MC375LL/A laptop-computer-replacement-parts - Walmart.com
OWC SSD Upgrade Kits For MacBook (2008 - 2009)
Apple MacBook Pro 13", M1 Chip, 8GB Memory, 256GB SSD, Space Gray, Late 2020 MYD82LL/A