StarTech SLSATAF12 300mm Slimline SATA To SATA Data Cable With LP4 Molex Power

Manufacturer's part no.: SLSATAF12. Connector B: LP4 (4-pin, Molex large drive power) male, SATA (7-pin, data) receptacle. It allows you to connect a Slimline SATA drive to a motherboard which only has standard SATA connectors.

eBay