# Byteshed

> Hard drive prices per TB, NAS and DAS enclosures, and RAID calculators

## Tools

- [RAID calculator: SHR, Unraid, SnapRAID, ZFS and RAID 5 capacity](https://byteshed.co.uk/calculator/): Usable space for RAID 0 to 10, Synology SHR and SHR-2, ZFS mirrors and RAIDZ, Unraid, SnapRAID and JBOD, with mixed drive sizes and what the drives would cost.
- [SHR calculator: Synology Hybrid RAID capacity with mixed drives](https://byteshed.co.uk/calculator/shr/): Synology Hybrid RAID (SHR and SHR-2) capacity with mixed drive sizes. See usable TB, what RAID 5 would give on the same drives, and the drive cost.
- [Unraid capacity calculator: parity and array size with mixed drives](https://byteshed.co.uk/calculator/unraid/): Unraid array capacity with one or two parity drives and any mix of sizes. Also counts SnapRAID. Shows usable TB, parity and the drive cost.

## Product tables

- [Hot-swap drive cages for 5.25in bays: 3, 4 and 5 bay backplanes](https://byteshed.co.uk/cages/): 7 cages that turn empty 5.25in bays into front-loading drive bays, cheapest per bay first. If you've got an old tower with a couple of optical bays doing…
- [DAS enclosures: 2, 4 and 5 bay USB-C and Thunderbolt prices](https://byteshed.co.uk/das/): 15 USB and Thunderbolt boxes, cheapest per bay first. A DAS hangs off one computer, and it's the cheap way to give a mini PC or an old Plex box a lot more…
- [Hard drive docking stations: single and dual bay USB docks](https://byteshed.co.uk/docks/): 6 USB docks for bare 3.5in and 2.5in drives. They're handy for cold backups that live on a shelf, and for giving a new drive a once-over before it goes in the…
- [NAS hard drives compared: speed, workload, warranty, AFR](https://byteshed.co.uk/drives/): NAS and data-centre hard drives from 4 to 24 TB with speed, workload, warranty and Backblaze failure rates where they exist. Filter out the noisy or…
- [HBA cards for home servers: LSI 9207-8i, 9300-8i and newer](https://byteshed.co.uk/hba/): 4 Broadcom (LSI) cards, each good for eight or more drives on one PCIe slot. Flashed to IT mode, they're how most TrueNAS and Unraid boxes get direct access…
- [NAS units compared: 2, 4, 6 and 8 bays](https://byteshed.co.uk/nas/): NAS units from 2 to 9 bays with CPU, RAM ceiling and network ports side by side, all from the makers' own spec pages.

## Optional

- [ICY DOCK Black Vortex MB074SP-B: 4-bay hot-swap cage specs](https://byteshed.co.uk/cages/icy-dock-black-vortex-mb074sp-b/): ICY DOCK Black Vortex MB074SP-B: 4-bay cage, Direct drive connection, no backplane (SATA/SAS/IDE), 3.5in drives. Price per bay, sourced specs and who it…
- [ICY DOCK FatCage MB153SP-B: 3-bay hot-swap cage specs](https://byteshed.co.uk/cages/icy-dock-fatcage-mb153sp-b/): ICY DOCK FatCage MB153SP-B: 3-bay cage, SATA 6Gb/s / SAS 12Gb/s (single channel), 3.5in drives. Price per bay, sourced specs and who it suits.
- [ICY DOCK FatCage MB155SP-B: 5-bay hot-swap cage specs](https://byteshed.co.uk/cages/icy-dock-fatcage-mb155sp-b/): ICY DOCK FatCage MB155SP-B: 5-bay cage, SATA 6Gb/s / SAS 12Gb/s (single channel), 3.5in drives. Price per bay, sourced specs and who it suits.
- [ICY DOCK ToughArmor MB608SP-B: 6-bay hot-swap cage specs](https://byteshed.co.uk/cages/icy-dock-tougharmor-mb608sp-b/): ICY DOCK ToughArmor MB608SP-B: 6-bay cage, SATA 6Gb/s / SAS 12Gb/s (single channel), 2.5in drives. Price per bay, sourced specs and who it suits.
- [ICY DOCK ToughArmor MB994SP-4S: 4-bay hot-swap cage specs](https://byteshed.co.uk/cages/icy-dock-tougharmor-mb994sp-4s/): ICY DOCK ToughArmor MB994SP-4S: 4-bay cage, SATA 6Gb/s / SAS 24Gb/s (single channel), 2.5in drives. Price per bay, sourced specs and who it suits.
- [SilverStone FS303: 3-bay hot-swap cage specs](https://byteshed.co.uk/cages/silverstone-fs303/): SilverStone FS303: 3-bay cage, SATA 6Gb/s / SAS 12Gb/s, 3.5in drives. Price per bay, sourced specs and who it suits.
- [SilverStone FS305-12G: 5-bay hot-swap cage specs](https://byteshed.co.uk/cages/silverstone-fs305-12g/): SilverStone FS305-12G: 5-bay cage, SATA 6Gb/s / SAS 12Gb/s, 3.5in drives. Price per bay, sourced specs and who it suits.
- [ICY BOX IB-3740-C31: 4-bay DAS specs](https://byteshed.co.uk/das/icy-box-ib-3740-c31/): ICY BOX IB-3740-C31: 4-bay DAS, USB 3.2 Gen 2 Type-C, 3.5in or 2.5in drives. Price per bay, sourced specs and who it suits.
- [ICY BOX IB-RD3621-C31: 2-bay DAS specs](https://byteshed.co.uk/das/icy-box-ib-rd3621-c31/): ICY BOX IB-RD3621-C31: 2-bay DAS, USB 3.1 Gen 2 Type-C, 3.5in or 2.5in drives. Price per bay, sourced specs and who it suits.
- [ORICO 9558RU3: 5-bay DAS specs](https://byteshed.co.uk/das/orico-9558ru3/): ORICO 9558RU3: 5-bay DAS, USB 3.0 Type-B, 3.5in drives. Price per bay, sourced specs and who it suits.
- [ORICO 9858RU3: 5-bay DAS specs](https://byteshed.co.uk/das/orico-9858ru3/): ORICO 9858RU3: 5-bay DAS, USB 3.0 Type-B. Price per bay, sourced specs and who it suits.
- [OWC Mercury Elite Pro Dual (USB-C, 3-Port Hub): 2-bay DAS specs](https://byteshed.co.uk/das/owc-mercury-elite-pro-dual-usb-c-3-port-hub/): OWC Mercury Elite Pro Dual (USB-C, 3-Port Hub): 2-bay DAS, USB 3.2 Gen 2 Type-C, 3.5in or 2.5in drives. Price per bay, sourced specs and who it suits.
- [OWC ThunderBay 4: 4-bay DAS specs](https://byteshed.co.uk/das/owc-thunderbay-4/): OWC ThunderBay 4: 4-bay DAS, Thunderbolt 3, 3.5in or 2.5in drives. Price per bay, sourced specs and who it suits.
- [QNAP TR-002: 2-bay DAS specs](https://byteshed.co.uk/das/qnap-tr-002/): QNAP TR-002: 2-bay DAS, USB 3.2 Gen 2 Type-C, 3.5in or 2.5in drives. Price per bay, sourced specs and who it suits.
- [QNAP TR-004: 4-bay DAS specs](https://byteshed.co.uk/das/qnap-tr-004/): QNAP TR-004: 4-bay DAS, USB 3.2 Gen 1 Type-C, 3.5in or 2.5in drives. Price per bay, sourced specs and who it suits.
- [Sabrent DS-SC4B: 4-bay DAS specs](https://byteshed.co.uk/das/sabrent-ds-sc4b/): Sabrent DS-SC4B: 4-bay DAS, USB 3.2 Type-C, 3.5in drives. Price per bay, sourced specs and who it suits.
- [Sabrent DS-SC5B: 5-bay DAS specs](https://byteshed.co.uk/das/sabrent-ds-sc5b/): Sabrent DS-SC5B: 5-bay DAS, USB 3.2 Type-C, 3.5in drives. Price per bay, sourced specs and who it suits.
- [TerraMaster D2-320: 2-bay DAS specs](https://byteshed.co.uk/das/terramaster-d2-320/): TerraMaster D2-320: 2-bay DAS, USB 3.2 Gen 2 Type-C, 3.5in or 2.5in drives. Price per bay, sourced specs and who it suits.
- [TerraMaster D4-320: 4-bay DAS specs](https://byteshed.co.uk/das/terramaster-d4-320/): TerraMaster D4-320: 4-bay DAS, USB 3.2 Gen 2 Type-C, 3.5in or 2.5in drives. Price per bay, sourced specs and who it suits.
- [TerraMaster D5-310: 5-bay DAS specs](https://byteshed.co.uk/das/terramaster-d5-310/): TerraMaster D5-310: 5-bay DAS, USB 3.1 Gen 1 Type-C, 3.5in or 2.5in drives. Price per bay, sourced specs and who it suits.
- [Yottamaster DY200C3: 2-bay DAS specs](https://byteshed.co.uk/das/yottamaster-dy200c3/): Yottamaster DY200C3: 2-bay DAS, USB-C, 3.5in drives. Price per bay, sourced specs and who it suits.
- [Yottamaster VN400C3: 4-bay DAS specs](https://byteshed.co.uk/das/yottamaster-vn400c3/): Yottamaster VN400C3: 4-bay DAS, USB 3.1 Gen 2 Type-C, 3.5in or 2.5in drives. Price per bay, sourced specs and who it suits.
- [ICY BOX IB-1121-U3: single-bay drive dock specs](https://byteshed.co.uk/docks/icy-box-ib-1121-u3/): ICY BOX IB-1121-U3: 1-bay dock, USB 3.2 Gen 1 Type-A, 3.5in or 2.5in drives. Price, sourced specs and who it suits.
- [ICY BOX IB-127CL-U3: dual-bay drive dock specs](https://byteshed.co.uk/docks/icy-box-ib-127cl-u3/): ICY BOX IB-127CL-U3: 2-bay dock, USB 3.2 Gen 1 (Type-A / Type-C cable), 3.5in or 2.5in drives. Price, sourced specs and who it suits.
- [ORICO 6228US3-C: dual-bay drive dock specs](https://byteshed.co.uk/docks/orico-6228us3-c/): ORICO 6228US3-C: 2-bay dock, USB 3.0 Type-B, 3.5in or 2.5in drives. Price, sourced specs and who it suits.
- [ORICO 6629US3-C-V1: dual-bay drive dock specs](https://byteshed.co.uk/docks/orico-6629us3-c-v1/): ORICO 6629US3-C-V1: 2-bay dock, USB 3.0, 3.5in or 2.5in drives. Price, sourced specs and who it suits.
- [Sabrent DS-UTC1: single-bay drive dock specs](https://byteshed.co.uk/docks/sabrent-ds-utc1/): Sabrent DS-UTC1: 1-bay dock, USB 3.1 Type-C, 3.5in or 2.5in drives. Price, sourced specs and who it suits.
- [Sabrent EC-DFLT: single-bay drive dock specs](https://byteshed.co.uk/docks/sabrent-ec-dflt/): Sabrent EC-DFLT: 1-bay dock, USB 3.0, 3.5in or 2.5in drives. Price, sourced specs and who it suits.
- [Seagate Exos X16 12TB (ST12000NM001G): specs and failure rate](https://byteshed.co.uk/drives/seagate-exos-x16-12tb/): Seagate Exos X16 12TB (ST12000NM001G): 12 TB, 7,200 rpm, 550 TB/yr, 5-year warranty. Backblaze lifetime AFR 1.00%. Sourced specs and who it suits.
- [Seagate Exos X16 14TB (ST14000NM001G): specs and failure rate](https://byteshed.co.uk/drives/seagate-exos-x16-14tb/): Seagate Exos X16 14TB (ST14000NM001G): 14 TB, 7,200 rpm, 550 TB/yr, 5-year warranty. Backblaze lifetime AFR 1.38%. Sourced specs and who it suits.
- [Seagate Exos X16 16TB (ST16000NM001G): specs and failure rate](https://byteshed.co.uk/drives/seagate-exos-x16-16tb/): Seagate Exos X16 16TB (ST16000NM001G): 16 TB, 7,200 rpm, 550 TB/yr, 5-year warranty. Backblaze lifetime AFR 0.68%. Sourced specs and who it suits.
- [Seagate Exos X18 18TB (ST18000NM000J): specs and failure rate](https://byteshed.co.uk/drives/seagate-exos-x18-18tb/): Seagate Exos X18 18TB (ST18000NM000J): 18 TB, 7,200 rpm, CMR, 550 TB/yr, 5-year warranty. Backblaze lifetime AFR 3.17%. Sourced specs and who it suits.
- [Seagate Exos X20 20TB (ST20000NM007D): specs and failure rate](https://byteshed.co.uk/drives/seagate-exos-x20-20tb/): Seagate Exos X20 20TB (ST20000NM007D): 20 TB, 7,200 rpm, CMR, 550 TB/yr, 5-year warranty. Sourced specs and who it suits.
- [Seagate Exos X24 24TB (ST24000NM002H): specs and failure rate](https://byteshed.co.uk/drives/seagate-exos-x24-24tb/): Seagate Exos X24 24TB (ST24000NM002H): 24 TB, 7,200 rpm, CMR, 550 TB/yr, 5-year warranty. Backblaze lifetime AFR 3.03%. Sourced specs and who it suits.
- [Seagate IronWolf 12TB (ST12000VN0008): specs and failure rate](https://byteshed.co.uk/drives/seagate-ironwolf-12tb/): Seagate IronWolf 12TB (ST12000VN0008): 12 TB, 7,200 rpm, CMR, 180 TB/yr, 3-year warranty. Sourced specs and who it suits.
- [Seagate IronWolf 4TB (ST4000VN006): specs and failure rate](https://byteshed.co.uk/drives/seagate-ironwolf-4tb/): Seagate IronWolf 4TB (ST4000VN006): 4 TB, 5,400 rpm, CMR, 180 TB/yr, 3-year warranty. Sourced specs and who it suits.
- [Seagate IronWolf 8TB (ST8000VN004): specs and failure rate](https://byteshed.co.uk/drives/seagate-ironwolf-8tb/): Seagate IronWolf 8TB (ST8000VN004): 8 TB, 7,200 rpm, CMR, 180 TB/yr, 3-year warranty. Sourced specs and who it suits.
- [Seagate IronWolf Pro 12TB (ST12000NT001): specs and failure rate](https://byteshed.co.uk/drives/seagate-ironwolf-pro-12tb/): Seagate IronWolf Pro 12TB (ST12000NT001): 12 TB, 7,200 rpm, CMR, 550 TB/yr, 5-year warranty. Sourced specs and who it suits.
- [Seagate IronWolf Pro 16TB (ST16000NT001): specs and failure rate](https://byteshed.co.uk/drives/seagate-ironwolf-pro-16tb/): Seagate IronWolf Pro 16TB (ST16000NT001): 16 TB, 7,200 rpm, CMR, 550 TB/yr, 5-year warranty. Sourced specs and who it suits.
- [Seagate IronWolf Pro 20TB (ST20000NT001): specs and failure rate](https://byteshed.co.uk/drives/seagate-ironwolf-pro-20tb/): Seagate IronWolf Pro 20TB (ST20000NT001): 20 TB, 7,200 rpm, CMR, 550 TB/yr, 5-year warranty. Sourced specs and who it suits.
- [Seagate IronWolf Pro 24TB (ST24000NT002): specs and failure rate](https://byteshed.co.uk/drives/seagate-ironwolf-pro-24tb/): Seagate IronWolf Pro 24TB (ST24000NT002): 24 TB, 7,200 rpm, CMR, 550 TB/yr, 5-year warranty. Sourced specs and who it suits.
- [Toshiba MG07 14TB (MG07ACA14TA): specs and failure rate](https://byteshed.co.uk/drives/toshiba-mg07-14tb/): Toshiba MG07 14TB (MG07ACA14TA): 14 TB, 7,200 rpm, CMR, 550 TB/yr, 5-year warranty. Backblaze lifetime AFR 1.07%. Sourced specs and who it suits.
- [Toshiba MG08 16TB (MG08ACA16TE): specs and failure rate](https://byteshed.co.uk/drives/toshiba-mg08-16tb/): Toshiba MG08 16TB (MG08ACA16TE): 16 TB, 7,200 rpm, CMR, 550 TB/yr, 5-year warranty. Backblaze lifetime AFR 1.23%. Sourced specs and who it suits.
- [Toshiba MG09 18TB (MG09ACA18TE): specs and failure rate](https://byteshed.co.uk/drives/toshiba-mg09-18tb/): Toshiba MG09 18TB (MG09ACA18TE): 18 TB, 7,200 rpm, CMR, 550 TB/yr, 5-year warranty. Sourced specs and who it suits.
- [Toshiba MG10 20TB (MG10ACA20TE): specs and failure rate](https://byteshed.co.uk/drives/toshiba-mg10-20tb/): Toshiba MG10 20TB (MG10ACA20TE): 20 TB, 7,200 rpm, CMR, 550 TB/yr, 5-year warranty. Backblaze lifetime AFR 0.79%. Sourced specs and who it suits.
- [Toshiba MG11 24TB (MG11ACA24TE): specs and failure rate](https://byteshed.co.uk/drives/toshiba-mg11-24tb/): Toshiba MG11 24TB (MG11ACA24TE): 24 TB, 7,200 rpm, CMR, 550 TB/yr, 5-year warranty. Backblaze lifetime AFR 0.50%. Sourced specs and who it suits.
- [Toshiba N300 12TB (HDWG51CEZSTA): specs and failure rate](https://byteshed.co.uk/drives/toshiba-n300-12tb/): Toshiba N300 12TB (HDWG51CEZSTA): 12 TB, 7,200 rpm, CMR, 180 TB/yr, 3-year warranty. Sourced specs and who it suits.
- [Toshiba N300 4TB (HDWG740EZSTC): specs and failure rate](https://byteshed.co.uk/drives/toshiba-n300-4tb/): Toshiba N300 4TB (HDWG740EZSTC): 4 TB, 7,200 rpm, CMR, 180 TB/yr, 3-year warranty. Sourced specs and who it suits.
- [Toshiba N300 8TB (HDWG780EZSTA): specs and failure rate](https://byteshed.co.uk/drives/toshiba-n300-8tb/): Toshiba N300 8TB (HDWG780EZSTA): 8 TB, 7,200 rpm, CMR, 180 TB/yr, 3-year warranty. Sourced specs and who it suits.
- [WD Red Plus 12TB (WD120EFBX): specs and failure rate](https://byteshed.co.uk/drives/western-digital-wd-red-plus-12tb/): WD Red Plus 12TB (WD120EFBX): 12 TB, 7,200 rpm, CMR, 180 TB/yr, 3-year warranty. Sourced specs and who it suits.
- [WD Red Plus 4TB (WD40EFPX): specs and failure rate](https://byteshed.co.uk/drives/western-digital-wd-red-plus-4tb/): WD Red Plus 4TB (WD40EFPX): 4 TB, 5,400 rpm, CMR, 180 TB/yr, 3-year warranty. Sourced specs and who it suits.
- [WD Red Plus 6TB (WD60EFPX): specs and failure rate](https://byteshed.co.uk/drives/western-digital-wd-red-plus-6tb/): WD Red Plus 6TB (WD60EFPX): 6 TB, 5,400 rpm, CMR, 180 TB/yr, 3-year warranty. Sourced specs and who it suits.
- [WD Red Plus 8TB (WD80EFPX): specs and failure rate](https://byteshed.co.uk/drives/western-digital-wd-red-plus-8tb/): WD Red Plus 8TB (WD80EFPX): 8 TB, 5,640 rpm, CMR, 180 TB/yr, 3-year warranty. Sourced specs and who it suits.
- [WD Red Pro 16TB (WD161KFGX): specs and failure rate](https://byteshed.co.uk/drives/western-digital-wd-red-pro-16tb/): WD Red Pro 16TB (WD161KFGX): 16 TB, 7,200 rpm, CMR, 550 TB/yr, 5-year warranty. Sourced specs and who it suits.
- [WD Red Pro 20TB (WD201KFGX): specs and failure rate](https://byteshed.co.uk/drives/western-digital-wd-red-pro-20tb/): WD Red Pro 20TB (WD201KFGX): 20 TB, 7,200 rpm, CMR, 550 TB/yr, 5-year warranty. Sourced specs and who it suits.
- [WD Red Pro 22TB (WD221KFGX): specs and failure rate](https://byteshed.co.uk/drives/western-digital-wd-red-pro-22tb/): WD Red Pro 22TB (WD221KFGX): 22 TB, 7,200 rpm, CMR, 550 TB/yr, 5-year warranty. Sourced specs and who it suits.
- [WD Ultrastar DC HC550 16TB (WUH721816ALE6L4): specs and failure rate](https://byteshed.co.uk/drives/western-digital-wd-ultrastar-dc-hc550-16tb/): WD Ultrastar DC HC550 16TB (WUH721816ALE6L4): 16 TB, 7,200 rpm, CMR, 550 TB/yr, 5-year warranty. Backblaze lifetime AFR 0.54%. Sourced specs and who it…
- [WD Ultrastar DC HC570 22TB (WUH722222ALE6L4): specs and failure rate](https://byteshed.co.uk/drives/western-digital-wd-ultrastar-dc-hc570-22tb/): WD Ultrastar DC HC570 22TB (WUH722222ALE6L4): 22 TB, 7,200 rpm, CMR, 550 TB/yr, 5-year warranty. Backblaze lifetime AFR 0.58%. Sourced specs and who it…
- [Broadcom HBA 9400-8i HBA card: specs](https://byteshed.co.uk/hba/broadcom-hba-9400-8i/): Broadcom HBA 9400-8i: Broadcom SAS3408, 8 SATA/SAS drives, PCIe 3.1 x8. Price, sourced specs and who it suits.
- [Broadcom HBA 9500-8i HBA card: specs](https://byteshed.co.uk/hba/broadcom-hba-9500-8i/): Broadcom HBA 9500-8i: Broadcom SAS3808, 8 SATA/SAS drives, PCIe 4.0 x8. Price, sourced specs and who it suits.

## About

- [RAID and Unraid calculator, NAS drives and failure rates](https://byteshed.co.uk/): A RAID, SHR and Unraid capacity calculator that handles mixed drive sizes, plus NAS drive specs and Backblaze failure rates for 36 models.
- [How we choose](https://byteshed.co.uk/method/): How Byteshed ranks home storage. Price per terabyte comes first, then maker specs and Backblaze failure rates, with the same rules for every product.
- [Privacy](https://byteshed.co.uk/privacy/): Byteshed sets no cookies and collects no personal data.
- [Hard drive failure rates (AFR) with confidence intervals](https://byteshed.co.uk/reliability/): Hard drive failure rates with 95% intervals for 36 models, worked out from Backblaze Drive Stats to 2026 Q2, with 12 linked to drives we list.

## Data and feeds

- [Price drops (RSS)](https://byteshed.co.uk/feeds/price-drops.xml): Price drops from Byteshed
- [New products (RSS)](https://byteshed.co.uk/feeds/new-products.xml): New products from Byteshed
- [Weekly best value (RSS)](https://byteshed.co.uk/feeds/weekly.xml): Weekly best value from Byteshed
- [Hard drive price per TB by capacity](https://byteshed.co.uk/data/price-per-tb.json): weekly aggregates, CC BY 4.0, CSV at https://byteshed.co.uk/data/price-per-tb.csv