OWC Mercury On-The-Go Pro (FireWire 800 / USB 3.1 Gen 1 compatible portable hard disk case) Mac OS X / macOS boot disk compatible Amulet original manual included Security Locks & Accessories - Newegg.com
Amazon.com: OWC Mercury On-The-Go Portable 2.5" FW800/USB3.0 Enclosure Kit for Serial ATA (SATA) : Electronics
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Macally G-S350SUAB eSATA / USB 2.0 / FIREWIRE 400, 800 Storage Enclosure for 3.5" SATA Hard Drive