# CUBE storage I currently run a 4-bay QNAP device that sits next to the CUBE. I'm beginning to think I want the CUBE to hold all the storage drives it needs. I picked up 4 of the Ubiquiti sleds ([$15 each](https://store.ui.com/us/en/category/accessories-installations/collections/drive-trays/products/uacc-hdd-tray?variant=uacc-hdd-tray)) for a flat aluminum look. I just need a frame, a way to plug the drives in (ideally that works by simply removing or inserting the sled), and a way to power the drives. Oh, and some more compute to run something like TrueNAS. I think I can get the 4 3.5" sleds into a 1.5U size. Maybe even add in some 2.5" SSDs, and round it up to 2U for storage sleds. - 3d-printed 1U 2-bay https://www.printables.com/model/1290788-10-inch-rack-1u-2-x-35-inch-hdd-hot-swap - Can I cannibalize the qnap and shelve it? ## compute The compute for this could be an RPi 4 I have lying around. Follow this example: https://github.com/wiretap-retro/Mini-Rack-1U-Pi-NAS. Or a ZimaBoard 2, or a [Rock 5 ITX](https://radxa.com/products/rock5/5itx/#overview)? Do I try a SATA expansion board on my current Framework Desktop's x4 slot? If that works, do I stick my current FW Desktop into the CUBE or do I buy a new one? ## power Should it have [NUT](https://www.jeffgeerling.com/blog/2025/nut-on-my-pi-so-my-servers-dont-die) or some other "safe shutdown in emergency power-out" system? ## OS ## drives Here's the list of compatible drives for the UNAS Pro 4 (prices from 13 June 2026): | Brand | Model | newegg | capacity | price per TB | | --------------- | -------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------- | -------- | ------------ | | Seagate | ST24000NM002H-3KS133 | [$1300](https://www.newegg.com/seagate-exos-x24-st24000nm002h-24tb-enterprise-nas-hard-drives-7200-rpm/p/N82E16822185105) | 24TB | $54 | | Seagate | ST10000NT001-3LY101 | | | | | Seagate | ST8000VN002-2ZM188 | | | | | Seagate | ST16000NM000J-2TW103 | [$690](https://www.newegg.com/seagate-exos-x18-st16000nm000j-16tb/p/1Z4-002P-022S9) | 16TB | $43 | | Seagate | ST1000DM010-2EP102 | [$90](https://www.newegg.com/seagate-barracuda-st1000dm010-1tb/p/N82E16822179010) | 1TB | $90 | | Seagate | ST8000NM017B-2TJ103 | [$400](https://www.newegg.com/p/1Z4-002P-024F9) | 8TB | $50 | | Toshiba | HDWG780UZSVA | | | | | Toshiba | MG10ADA800E | | | | | Western Digital | HUH721212ALE604 | | | | | Western Digital | WD10PURZ-85U8XY0 | [$203](https://www.newegg.com/p/1Z4-0002-01NE0) (20-pack) | 1TB x 20 | $10 | | Western Digital | WD8005FRYZ-01CBLB0 | [$677](https://www.newegg.com/gold-wd8005fryz-8tb-enterprise-nas-hard-drives-7200-rpm/p/N82E16822234563) | 8TB | $84 | | Western Digital | WD120EFBX-68B0EN0 | [$600](https://www.newegg.com/red-plus-wd120efbx-12tb-hard-drives-for-nas-systems-7200-rpm/p/N82E16822234466) | 12TB | $50 | | Ubiquiti | UACC-HDD-S-1TB | [$120](https://store.ui.com/us/en/category/accessories-storage/collections/unifi-accessory-tech-hdd/products/uacc-hdd-s-1tb) | 1TB | $120 | | Ubiquiti | UACC-HDD-S-4TB | [$149](https://store.ui.com/us/en/category/accessories-storage/collections/unifi-accessory-tech-hdd/products/uacc-hdd-s-4tb?variant=uacc-hdd-s-4tb) | 4TB | $37.5 | | Ubiquiti | UACC-HDD-E-8TB | [$299](https://store.ui.com/us/en/category/accessories-storage/collections/unifi-accessory-tech-hdd/products/uacc-hdd-e-8tb?variant=uacc-hdd-e-8tb) | 8TB | $37.5 | | Ubiquiti | UACC-HDD-E-16TB | [$479](https://store.ui.com/us/en/category/accessories-storage/collections/unifi-accessory-tech-hdd/products/uacc-hdd-e-16tb?variant=uacc-hdd-e-16tb) | 16TB | $30 | | Ubiquiti | UACC-HDD-E-24TB | [$679](https://store.ui.com/us/en/category/accessories-storage/collections/unifi-accessory-tech-hdd/products/uacc-hdd-e-24tb?variant=uacc-hdd-e-24tb) | 24TB | $28 | Not sure why I picked the UNAS Pro 4. Maybe it was a matter of "if I ever upgrade to a new NAS head, I want the drives to work with it".