Amazon.com: BestParts 575-BBSO New HDD SSD Upgrade Kit Compatible with Precision T7920 7920 Precison T7920XL Installing 4X Additional 2.5" or 3.5" SATA/SAS HDD/SSD on The Rear of The Chassis in FlexBay 3
Amazon.com: StarTech.com SSD Mounting Bracket - Solid Metal - 2.5in to 3.5 Hard Drive Adapter - SSD Bracket - SSD Upgrade Kit (BRACKET25SAT) : Electronics