ThinkNAS - 2x HDD enclosure for Lenovo M920q

ThinkNAS - it's a compact, 2 HDD bay enclosure, compatible with Lenovo ThinkCentre M920q  (and M920x / M720x) mini PC.

Ideal for Truenas or Proxmox etc.

This is V2 version, which is fully redesigned, it's no longer using any 3rd party remixed parts. HDD caddy should be compatible with the older version.

Changes:

✅ No 3rd party remixed parts

✅ Redesigned HDD caddy and handle for better airflow

✅ Wider gaps between HDDs

✅ Redesigned ThinkNAS case, now it's possible to install 2x 80mm FANS

✅ Slightly modified HDD bay height for better cable management - you can put PC power supply on the bottom, and FAN controller + SATA cables on the top.

✅ Dell Perc H200 controller has been replaced by PCIe ASM1166 6x SATA controller, for less heat and better availability (yes, it's fully compatible with TrueNAS).

If you're searching 4-bay version, go here: https://makerworld.com/en/models/1399535-thinknas-4x-hdd-nas-enclosure-for-lenovo-m920q#profileId-1451077 

Also 6-bay version is available: https://makerworld.com/en/models/1737570-thinknas-6x-hdd-nas-enclosure-for-lenovo-m920q#profileId-1846272

Used parts:

• Lenovo ThinkCentre M920q PC obviously :)
• M920q compatible PCIe riser [LINK]
• ASM1166 PCIe to 6x SATA Controller [LINK] if you want use NVMe version check below:
• If you want to use ASM1166 NVMe version, to free up the PCIe slot (so you can connect better network card or other stuff), you'll need NVMe extender like this: [LINK], and also ASM1166 NVMe controller [LINK]
• SATA Male to female adapter ("backplane") [LINK]
• SATA cables (50cm will be enough)
• USB powered fan controller [LINK]
• 5525 12V at least 4A (can be also 6A) power supply - for supplying power to disks [LINK]
• 5525 to SATA splitter - from power supply to HDD/FAN(s) [LINK]
• 80mm FAN(s) - I've used Arctic P8 Slim

Screws:

• 6-32*6mm screws for ThinkNAS case and for installing HDD disks into caddy [LINK]
• M3*10mm screws for installing backplane to NAS case [LINK]
• M3*20mm screws for installing handle with HDD caddy

If you're installing rear fan(s) - be sure also install FAN grill, so anything will not collide with the fan blade. You can find one here: https://makerworld.com/en/models/1280129-screwless-80mm-fan-grill-with-distance-no-whine#profileId-1307869 

PCIe SATA Controller ASM1166 bracket compatible with Lenovo M920q (and others) is here: https://makerworld.com/en/models/1246251-lenovo-m720q-m920q-hdd-controller-bracket-asm1166#profileId-1267786 

Be sure to print it at least with PETG  filament, so it'll be more heat resistant, than PLA.