2.5" SATA III to dual mini SATA USB 3.0 to 2 mSATA SSD Raid controller card Converter with cable - buy at the price of $28.98 in aliexpress.com | imall.com
Can I attach a SATA controller? - Raspberry Pi Stack Exchange
RAID Controller | USB 3.0 to Dual SATA Il (3Gb/s) RAID Bridge Board | U3-DSATA231
eSATA 6Gb/s and USB3.0 5Gb/s host to 2x SATAIII port support PM (JBoD) and raid 0/1/BIG controller - [eS6U3-DS3r]
USB 3.0 & eSATA to 5 SATA Port Multiplier & RAID Adapter - from LINDY UK