NAS Hard Drives - Prices & Comparisons

Purpose-built NAS drives ranked by live cost per terabyte: 81 tracked across 1TB - 32TB, the cheapest in stock at $30.00/TB. Seagate IronWolf, WD Red Pro, Synology HAT and Toshiba N300, with out-of-stock listings excluded from the ranking.

81drives·prices re-checked about once a day·last checked
Best $/TB
$30.00
Drives Tracked
81
Capacity Range
1TB - 32TB
Cheapest per TB right now
WD Red 10TB WD100EFAX
$30.00/TB
$299.99 total · 10TB
REFURB / USED Amazon: Used / Good · sold by ALL4COMPUTERS ----- SIGNATURE REQUIRED ----- · seller's note on the listing

The lowest $/TB NAS-class drive in stock, any condition - check its condition and recording technology before buying for a RAID array.

Buy on Amazon $299.99

Best NAS drives for home lab and SMB storage

The Seagate IronWolf Pro and WD Red Pro are the go-to choices for 8+ bay NAS running 24/7. Both use CMR recording, are RAID-safe, and carry 5-year warranties. Synology HAT5300 drives are factory-optimized for DiskStation firmware. For budget builds, IronWolf (non-Pro) suits 1-8 bay NAS with lighter workloads.

Price and quality81 of 81 drives
Condition
Capacity
78 of 78 part numbers (81 offers)
  • $30.00/TB$299.99
    WD Red 10TB WD100EFAX
    WD100EFAX
    10TB · SATA-6G
    Refurb
  • $31.25/TB$499.99
    Seagate IronWolf Pro 16TB NAS ST16000NE000
    ST16000NE000
    16TB · SATA-6G
    Refurb
  • $31.25/TB$249.99
    WD Red 8TB WD80EFAX
    WD80EFAX
    8TB · SATA-6G · 2 offers
    Refurb
  • $32.72/TB$589.00
    WD Red Pro 18TB WD181KFGX
    WD181KFGX
    18TB · SATA-6G · 2 offers
    Refurb
  • $33.00/TB$329.99
    WD Red Pro 10TB WD101KFBX
    WD101KFBX
    10TB · SATA-6G
    Refurb
  • $33.33/TB$399.99
    WD Red Pro 12TB WD121KFBX
    WD121KFBX
    12TB · SATA-6G
    Refurb
  • $33.33/TB$200.00
    WD Red Pro 6TB WD6002FFWX
    WD6002FFWX
    6TB · SATA-6G
    Refurb
  • $35.00/TB$349.99
    Seagate IronWolf 10TB NAS ST10000VN0008
    ST10000VN0008
    10TB · SATA-6G
    Refurb
  • $35.00/TB$349.99
    WD Red Plus 10TB WD100EFGX
    WD100EFGX
    10TB · SATA-6G
    Refurb
  • $35.00/TB$349.99
    WD Red Plus 10TB WD101EFBX
    WD101EFBX
    10TB · SATA-6G
    Refurb
  • $35.23/TB$774.99
    WD Red Pro 22TB NAS WD221KFGX
    WD221KFGX
    22TB · SATA-6G
    Refurb
  • $36.87/TB$589.99
    Seagate IronWolf Pro 16TB NAS
    ST16000NT001
    16TB · SATA-6G
    New
  • $37.50/TB$299.99
    Seagate IronWolf 8TB NAS ST8000VN0022
    ST8000VN0022
    8TB · SATA-6G
    Refurb
  • $38.00/TB$379.99
    Seagate IronWolf 10TB NAS ST10000VN0004
    ST10000VN0004
    10TB · SATA-6G
    Refurb
  • $38.12/TB$609.99
    WD Red Pro 16TB WD161KFGX
    WD161KFGX
    16TB · SATA-6G
    Refurb
  • $38.33/TB$460.00
    WD Red 12TB WD120EFAX
    WD120EFAX
    12TB · SATA-6G
    Refurb
  • $40.00/TB$399.99
    Seagate IronWolf Pro 10TB NAS ST10000NE0008
    ST10000NE0008
    10TB · SATA-6G
    Refurb
  • $40.00/TB$399.99
    Seagate IronWolf Pro 10TB NAS ST10000NEZ008
    ST10000NEZ008
    10TB · SATA-6G
    Refurb
  • $40.00/TB$239.99
    Seagate IronWolf 6TB NAS ST6000VN001
    ST6000VN001
    6TB · SATA-6G
    Refurb
  • $40.00/TB$799.99
    WD Red Pro 20TB WD201KFGX
    WD201KFGX
    20TB · SATA-6G
    Refurb
  • $41.25/TB$329.99
    WD Red Pro 8TB NAS WD8003FFBX
    WD8003FFBX
    8TB · SATA-6G
    Refurb
  • $41.67/TB$249.99
    WD Red Pro 6TB WD6003FFBX
    WD6003FFBX
    6TB · SATA-6G · 2 offers
    Refurb
  • $43.50/TB$434.99
    Seagate IronWolf 10TB NAS ST10000VNZ00
    ST10000VNZ00
    10TB · SATA-6G
    New
  • $43.71/TB$961.70
    WD Red Pro 22TB NAS WD221KFGX
    WD221KFGX
    22TB · SATA-6G
    New
  • $43.75/TB$1,399.99
    Seagate IronWolf Pro 32TB NAS HAMR
    ST32000NT000
    32TB · SATA-6G
    New
  • $43.75/TB$349.99
    WD Red Pro 8TB WD8005FFBX
    WD8005FFBX
    8TB · SATA-6G
    Refurb
  • $44.00/TB$879.99
    Seagate IronWolf Pro 20TB NAS
    ST20000NT001
    20TB · SATA-6G
    New
  • $44.58/TB$534.99
    Seagate IronWolf Pro 12TB NAS ST12000NE0008
    ST12000NE0008
    12TB · SATA-6G
    New
  • $44.87/TB$897.33
    WD Red Pro 20TB WD202KFGX
    WD202KFGX
    20TB · SATA-6G
    New
  • $44.91/TB$718.48
    WD Red Pro 16TB WD161KFGX
    WD161KFGX
    16TB · SATA-6G
    New
  • $45.00/TB$449.99
    Seagate IronWolf 10TB NAS ST10000VN0004
    ST10000VN0004
    10TB · SATA-6G
    New
  • $45.00/TB$449.99
    WD Red Pro 10TB NAS WD103KFBX
    WD103KFBX
    10TB · SATA-6G
    Refurb
  • $45.00/TB$539.99
    WD Red Pro 12TB NAS WD122KFBX
    WD122KFBX
    12TB · SATA-6G
    New
  • $45.00/TB$539.99
    WD Red Plus 12TB WD120EFGX
    WD120EFGX
    12TB · SATA-6G
    New
  • $45.58/TB$455.75
    WD Red Plus 10TB WD100EFGX
    WD100EFGX
    10TB · SATA-6G
    New
  • $45.59/TB$729.44
    Seagate IronWolf Pro 16TB NAS ST16000NE000
    ST16000NE000
    16TB · SATA-6G
    New
  • $45.90/TB$459.00
    Seagate IronWolf 10TB NAS ST10000VN0008
    ST10000VN0008
    10TB · SATA-6G
    New
  • $47.10/TB$188.39
    WD Red Plus 4TB WD40EFZX
    WD40EFZX
    4TB · SATA-6G
    Refurb
  • $47.49/TB$189.97
    Seagate IronWolf 4TB NAS ST4000VN008
    ST4000VN008
    4TB · SATA-6G
    Refurb
  • $47.50/TB$379.99
    WD Red Plus 8TB NAS
    WD80EFZZ
    8TB · SATA-6G
    Refurb
  • $47.50/TB$285.00
    WD Red Legacy 6TB WD60EFRX
    WD60EFRX
    6TB · SATA-6G
    Refurb
  • $47.62/TB$380.93
    WD Red Plus 8TB WD80EFPX
    WD80EFPX
    8TB · SATA-6G
    Refurb
  • $48.75/TB$194.99
    WD Red Plus 4TB WD40EFZZ
    WD40EFZZ
    4TB · SATA-6G
    New
  • $50.00/TB$399.99
    Seagate IronWolf Pro 8TB NAS ST8000NEZ01
    ST8000NEZ01
    8TB · SATA-6G
    Refurb
  • $50.00/TB$399.99
    WD Red Pro 8TB WD8005FFBX
    WD8005FFBX
    8TB · SATA-6G
    New
  • $51.00/TB$509.99
    WD Red Pro 10TB NAS WD103KFBX
    WD103KFBX
    10TB · SATA-6G
    New
  • $53.85/TB$753.95
    WD Red Pro 14TB NAS WD142KFGX
    WD142KFGX
    14TB · SATA-6G
    New
  • $53.93/TB$539.32
    Seagate IronWolf Pro 10TB NAS ST10000NE0004
    ST10000NE0004
    10TB · SATA-6G
    New
  • $54.33/TB$163.00
    WD Red Legacy 3TB WD30EFRX
    WD30EFRX
    3TB · SATA-6G
    Refurb
  • $54.66/TB$1,311.83
    WD Red Pro 24TB WD241KFGX
    WD241KFGX
    24TB · SATA-6G
    New
  • $54.71/TB$437.66
    WD Red Plus 8TB WD80EFPX
    WD80EFPX
    8TB · SATA-6G
    New
  • $55.00/TB$440.00
    Seagate IronWolf 8TB NAS ST8000VN0022
    ST8000VN0022
    8TB · SATA-6G
    New
  • $55.00/TB$440.00
    Seagate IronWolf Pro 8TB NAS ST8000NE001
    ST8000NE001
    8TB · SATA-6G
    New
  • $55.00/TB$439.99
    WD Red 8TB WD80EFAX
    WD80EFAX
    8TB · SATA-6G
    New
  • $58.17/TB$349.00
    Seagate IronWolf 6TB NAS ST6000VN0041
    ST6000VN0041
    6TB · SATA-6G
    New
  • $58.17/TB$349.00
    Seagate IronWolf 6TB NAS ST6000VN001
    ST6000VN001
    6TB · SATA-6G
    New
  • $59.05/TB$944.75
    WD Red Pro 16TB NAS
    16TB · SATA-6G
    New
  • $59.16/TB$354.93
    WD Red Pro 6TB WD6005FFBX
    WD6005FFBX
    6TB · SATA-6G
    Refurb
  • $59.59/TB$119.17
    WD Red Legacy 2TB WD20EFRX
    WD20EFRX
    2TB · SATA-6G
    Refurb
  • $60.00/TB$1,199.99
    WD Red Pro 20TB WD201KFGX
    WD201KFGX
    20TB · SATA-6G
    New
  • $60.70/TB$607.02
    Seagate IronWolf Pro 10TB NAS ST10000NE0008
    ST10000NE0008
    10TB · SATA-6G
    New
  • $62.50/TB$999.99
    Synology HAT5300 16TB NAS
    HAT5300-16T
    16TB · SATA-6G
    New
  • $63.51/TB$508.10
    Toshiba N300 8TB
    8TB · SATA-6G
    New
  • $64.45/TB$644.45
    Seagate IronWolf Pro 10TB NAS ST10000NEZ008
    ST10000NEZ008
    10TB · SATA-6G
    New
  • $65.45/TB$654.45
    Seagate IronWolf Pro 10TB NAS ST10000NT001
    ST10000NT001
    10TB · SATA-6G
    New
  • $67.47/TB$674.75
    WD Red Pro 10TB WD101KFBX
    WD101KFBX
    10TB · SATA-6G
    New
  • $67.50/TB$539.99
    WD Red Plus 8TB WD80EFBX
    WD80EFBX
    8TB · SATA-6G
    New
  • $67.50/TB$269.99
    WD Red Pro 4TB WD4003FFBX
    WD4003FFBX
    4TB · SATA-6G
    Refurb
  • $69.92/TB$419.50
    WD Red Pro 6TB WD6005FFBX
    WD6005FFBX
    6TB · SATA-6G
    New
  • $71.81/TB$574.45
    Seagate IronWolf Pro 8TB NAS ST8000NEZ01
    ST8000NEZ01
    8TB · SATA-6G
    New
  • $74.31/TB$594.45
    WD Red Plus 8TB WD80EFZX
    WD80EFZX
    8TB · SATA-6G
    New
  • $87.33/TB$524.00
    WD Red Pro 6TB WD6003FFBX
    WD6003FFBX
    6TB · SATA-6G
    New
  • $88.58/TB$531.45
    WD Red Pro 6TB WD6002FFWX
    WD6002FFWX
    6TB · SATA-6G
    New
  • $93.00/TB$93.00
    WD Red Legacy 1TB WD10EFRX
    WD10EFRX
    1TB · SATA-6G
    Refurb
  • $97.50/TB$390.00
    WD Red Pro 4TB WD4003FFBX
    WD4003FFBX
    4TB · SATA-6G
    New
  • $107.50/TB$215.00
    WD Red Legacy 2TB WD20EFRX
    WD20EFRX
    2TB · SATA-6G
    New
  • $109.95/TB$219.90
    WD Red 2TB WD20EFAX
    WD20EFAX
    2TB · SATA-6G
    New
  • $161.00/TB$161.00
    WD Red Legacy 1TB WD10EFRX
    WD10EFRX
    1TB · SATA-6G
    New

Shopping the Seagate line specifically? Every IronWolf and IronWolf Pro model is ranked by live $/TB with the workload rating recorded per part number.

Shopping WD instead? WD Red, Red Plus and Red Pro are decoded there by model-number suffix, because the tier name on a listing does not settle the CMR-or-SMR question and the part number does. WD's own documents place the shingled models in the plain Red tier at 2TB, 3TB, 4TB and 6TB.

Worried a drive will not be supported in your machine? NAS drive compatibility carries each manufacturer's own list, read in a browser and dated, with what being on it - or absent from it - actually means. On four of the five vendors the list is advice; on one it decides whether a storage pool can be created at all.

NAS HDD Buyer's Guide

🏠

NAS vs Enterprise SATA

NAS drives like IronWolf and Red Pro are tuned for 24/7 multi-bay enclosures with rotational vibration sensors. Rated 180-300TB/yr workload. Enterprise Exos/Ultrastar (550TB/yr) also work in NAS but lack vibration optimization.

🛡️

CMR Only for RAID

WD Red (non-Pro) uses SMR in some capacities which causes severe RAID rebuild performance issues. Red Plus, Red Pro, and IronWolf Pro are always CMR. Verify before adding to a RAID array.

📐

Bay Count Matters

IronWolf suits 1-8 bay NAS units. IronWolf Pro and WD Red Pro are rated for 8-24 bay enclosures running 24/7 with higher vibration tolerance and longer warranties.

🔗

Synology HAT Series

HAT5300 and HAT5310 drives are Synology-certified and firmware-optimized for DiskStation Manager. They offer deep health monitoring integration and are worth the premium for Synology owners.

Frequently Asked Questions

IronWolf is rated for 180TB/year workloads in 1-8 bay NAS. IronWolf Pro is rated 300TB/year for 8+ bay NAS running 24/7 in enterprise environments. Pro adds a 5-year warranty vs 3-year, rescue data recovery services, and is built for heavier sustained workloads. Choose Pro for always-on business NAS.

Yes. WD Red Pro is compatible with Synology DiskStation NAS. Check the Synology compatibility list for your specific model. WD Red Pro uses CMR recording and is RAID-safe for all RAID levels supported by Synology.

HAT5300 and HAT5310 drives are Synology-certified and tuned for DiskStation DSM firmware, offering optimized vibration compensation and power management. The premium over IronWolf is typically 10-15%. Worth it for Synology owners who want guaranteed compatibility and firmware optimization.