It may not be as impressive or as affordable as the Black Vortex model but the ICYCube Quad-Bay 2.5"/3.5" drive enclosure again by ICY DOCK is certainly worth checking out.
ICY DOCK ICYCube MB561U3S-4S Four Bay USB 3.0 Storage Enclosure Review
MB561U3S-4S_R1-Quad Bay 2.5/3.5 SATA HDD/SSD USB 3.0/eSATA (PM
MB561U3S-4SB_R1-Quad Bay 2.5/3.5 SATA HDD/SSD USB 3.0/eSATA (PM
ICY DOCK Quad Bay 2.5” 3.5” SATA HDD/SSD USB 3.0/eSATA External
MB561U3S-4SB_R1-Quad Bay 2.5/3.5 SATA HDD/SSD USB 3.0/eSATA (PM
Icy Dock 3.5 SATA Dual Bay RAID Enclosure Review (MB662U3-2S
ICY DOCK ICYCube MB561U3S-4S R1 4 Bay USB 3.0 & eSATA 2.5 / 3.5
MB561U3S-4S_R1-Quad Bay 2.5/3.5 SATA HDD/SSD USB 3.0/eSATA (PM
ICY DOCK – We Look at a Potpourri of Storage Solutions – Techgage
MB662U3-2S_ICYRaid Series_EXTERNAL DRIVE ENCLOSURES / DOCKING_ICY