USB 3.0 external Harddisk case for 15mm HDDs (for 3TB and 4TB)

thingiverse

2.5 inch hard drives are extremely convenient because they require only 5Volts from the USB port and no power supply unit is needed. The largest and most affordable per gigabyte of these 2,5" drives come in 15mm Thickness and use more platters than standard 9.5, 12.5 or 7mm notebook HDDs. Unfortunately, there are almost no USB3.0 cases available on the market that support these thicker 15mm Harddrives. Recently, I purchased a Seagate ST4000LM016 4TB drive for RAW files and video backups. I obtained the single 15mm enclosure which was in stock for it from Raidsonic icybox, but it would not function on my mac. It must have something to do with the controller that Raidsonic uses. However, a Chinese 4$ noname USB3.0 case from eBay worked perfectly fine. The Case is identified by a USB ID of 0x0621 and a Vendor ID of 0x1f75 (Innostor Co, Ltd.). Because the case only supported 12.5mm HDDs, I created a new case to support 15mm drives. I decided to reuse the sturdy aluminium panels of the original external case and just print a new frame as this is most cost-effective and has better looks and thermals compared to a pure 3D printed design. The case can be opened without any tools by pressing the front part and bending the hooks that engage the aluminium panels inside. It took four design changes to get my idea right, but the fifth print now fits perfectly.