Best nas hard drive, ranked by $/TB

SSD · NVMe · hard drive · external · NAS · SAS · microSD, all on Amazon.com

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Updated 5 hours ago

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CMR hard drives rated for 24/7 NAS use. This table ranks every nas hard drive we track on Amazon.com by live price per terabyte, so you can compare value across brands and capacities at a glance and find the cheapest cost per terabyte rather than scanning listing after listing.

Best price per TB
$23.89
Products tracked
60
Prices updated
5 hours ago
Price per
60 products
ProductCapacityPrice$ / TBTechPrime
MDD MAXDIGITALDATA MDD (MDD18TS25672NAS) 18TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5'' Internal NAS Hard Drive (Renewed)Renewed18 TB$429.99$23.89HDD · SATA-
WD Red 8TB NAS Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 128MB Cache 3.5 Inch - WD80EFZXUsed8 TB$199.99$25.00HDD · SATA-
MDD (MD14TSATA25672NAS) 14TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5'' Internal NAS Hard Drive - 5 Years Warranty (Renewed)Renewed14 TB$349.95$25.00HDD · SATA-
MDD MAXDIGITALDATA 20TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5'' Internal Hard Drive (for NAS, Network Storage) - 5 Years Warranty20 TB$499.99$25.00HDD · SATA-
MDD (MDD22TS25672NAS) 22TB 7200RPM 256MB Cache SATA 6.0Gb/s 3.5inch Internal NAS Hard Drive - 5 Years Warranty (Renewed)Renewed22 TB$559.99$25.45HDD · SATA-
Western Digital Internal Hard Drives 18Tb DC HC550 Surveillance,Wd 3.5 HDD Sata 6Gb/s 7200 PRM NAS 512 mb Cache for Dvr Nvr18 TB$469.99$26.11HDD · SATA-
MDD MAXDIGITALDATA 2021 MDD (MDD10TSATA25672NAS) 10TB 7200RPM 256MB Cache SATA 6.0Gb/s 3.5-inch Internal NAS Hard Drive (Renewed)Renewed10 TB$268.99$26.90HDD · SATA-
Seagate IronWolf 16TB NAS Internal Hard Drive HDD – CMR 3.5 Inch SATA 6GB/S 7200 RPM 256MB Cache for Raid Network Attached Storage, with Rescue Service (ST16000VN001)Used16 TB$449.99$28.12HDD · SATA-
MDD MAXDIGITALDATA MaxDigitalData 6TB 7200RPM 64MB Cache SATA 6.0Gb/s 3.5'' Helium Platform NAS Hard Drive - w/3 Year Warranty (Renewed)Renewed6 TB$169.99$28.33HDD · SATA-
MDD (MDD12TSATA25672NAS) 12TB 7200RPM 256MB Cache SATA 6.0Gb/s 3.5-inch Internal NAS Hard Drive - 5 Years Warranty (Renewed)Renewed12 TB$339.99$28.33HDD · SATA-
Seagate IronWolf Pro 14 TB NAS RAID Internal Hard Drive - 7,200 RPM SATA 6 Gb/s 3.5-inch (ST14000NE0008)Used14 TB$399.99$28.57HDD · SATA-
Seagate IronWolf Pro 18TB NAS HDD, ST18000NE000 SATA 6Gb/s 3.5" (Renewed)Renewed18 TB$519.99$28.89HDD · SATA-
MaxDigitalData 6TB 7200RPM 128MB Cache SATA 6.0Gb/s 3.5-inch Internal Hard Drive for NAS Network Storage (MD6000GSA12872NAS) - 3 Years Warranty (Renewed)Renewed6 TB$179.99$30.00HDD · SATA-
MDD MAXDIGITALDATA 8TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5'' Internal Hard Drive for NAS Network Storage (MD8000GSA25672NAS) - 3 Years Warranty (Renewed)Renewed8 TB$239.99$30.00HDD · SATA-
TOSHIBA N300 16TB SATA III 3.5" Internal NAS Hard Drive16 TB$498.99$31.19HDD · SATA-
Seagate (Recertified) IronWolf Pro 16TB NAS Internal Hard Drive HDD – CMR 3.5 Inch SATA 6Gb/s 7200 RPM 256MB Cache for RAID Network Attached Storage (ST16000NE000)Renewed16 TB$499.99$31.25HDD · SATA-
Seagate IronWolf Pro SATA III 3.5" Internal NAS Hard Drive, 7200 RPM - 20TB, 2-PackUsed40 TB$1,289.00$32.23HDD · SATA-
MDD MAXDIGITALDATA MaxDigitalData 8TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5inch Internal Hard Drive for NAS Network Storage (MD8000GSA25672NAS)8 TB$258.99$32.37HDD · SATA-
Seagate IronWolf 12TB, Interne Harde Schijf, voor NAS RAID, NAS, 3.5", SATA 6 GB/s, 7200 RPM, 265 MB Cache, FFP, Data Rescue Service (ST12000VNZ008)Used12 TB$399.99$33.33HDD · SATA-
Western Digital 18TB WD Red Pro NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, CMR, 512 MB Cache, 3.5" - WD181KFGXUsed18 TB$629.99$35.00HDD · SATA-
Western Digital 20TB WD Red Pro NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, CMR, 512 MB Cache, 3.5" - WD202KFGX20 TB$699.99$35.00HDD · SATA-
Seagate IronWolf Pro 24TB Enterprise NAS Internal HDD Hard Drive – CMR 3.5 Inch SATA 6Gb/s 7200 RPM 512MB Cache for RAID Network Attached Storage, Rescue Services (ST24000NT002)24 TB$859.99$35.83HDD · SATA-
Seagate IronWolf Pro, 20 TB, Enterprise NAS Internal HDD –CMR 3.5 Inch, SATA 6 Gb/s, 7,200 RPM, 256 MB Cache for RAID Network Attached Storage (ST20000NT001)20 TB$719.99$36.00HDD · SATA-
Seagate IronWolf Pro 28TB Enterprise NAS Internal HDD Hard Drive – CMR 3.5 Inch SATA 6Gb/s 7200 RPM 512MB Cache for RAID Network Attached Storage, Rescue Services (ST28000NT000)28 TB$1,019.99$36.43HDD · SATA-
Seagate IronWolf 12TB, Interne Harde Schijf, voor NAS RAID, NAS, 3.5", SATA 6 GB/s, 7200 RPM, 265 MB Cache, FFP, Data Rescue Service (ST12000VNZ008)12 TB$442.13$36.84HDD · SATAPrime
White Label WL 4TB 7200RPM 64MB Cache SATA 6.0Gb/s (Enterprise Grade) 3.5" Hard Drive (for Server, RAID, NAS, DVR, Desktop PC)4 TB$149.99$37.50HDD · SATA-
Seagate IronWolf 8TB NAS Internal Hard Drive HDD – 3.5 Inch SATA 6Gb/s 7200 RPM 256MB Cache for RAID Network Attached Storage – Frustration Free Packaging (ST8000VNZ04/N004)8 TB$299.99$37.50HDD · SATAPrime
Toshiba N300 20TB NAS 3.5-Inch Internal Hard Drive - CMR SATA 6 GB/s 7200 RPM 512 MB Cache - HDWG62AXZSTA20 TB$749.95$37.50HDD · SATA-
Seagate IronWolf 10TB NAS Internal Hard Drive, 3.5" SATA 6Gb/s, 7200 RPM, CMR, RAID Optimized, IronWolf Health Management – for NAS Systems (ST10000VNZ00)10 TB$378.00$37.80HDD · SATA-
Seagate IronWolf Pro, 12 TB, Enterprise NAS Internal HDD –CMR 3.5 Inch, SATA 6 Gb/s, 7,200 RPM, 256 MB Cache for RAID Network Attached Storage (ST12000NT001)12 TB$459.99$38.33HDD · SATAPrime
Western Digital 10TB WD Red Plus NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 GB/s, CMR, 512 MB Cache, 3.5" - WD100EFGX10 TB$388.99$38.90HDD · SATAPrime
Seagate IronWolf 10TB NAS Internal Hard Drive HDD – CMR 3.5 Inch SATA 6Gb/s 7200 RPM 256MB Cache for RAID Network Attached Storage, with Rescue Service (ST10000VN0008)Used10 TB$389.90$38.99HDD · SATA-
Seagate IronWolf 10TB NAS Internal Hard Drive HDD – 3.5 Inch SATA 6Gb/s 7200 RPM 256MB Cache RAID Network Attached Storage Home Servers - (ST10000VN0008)Used10 TB$389.99$39.00HDD · SATA-
Seagate IronWolf 10TB NAS Internal Hard Drive HDD – CMR 3.5 Inch SATA 6Gb/s 7200 RPM 256MB Cache for RAID Network Attached Storage, with Rescue Service (ST10000VN0008)10 TB$399.00$39.90HDD · SATA-
Western Digital 24TB WD Red Pro NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, CMR, 512 MB Cache, 3.5" -WD241KFGX24 TB$960.87$40.04HDD · SATAPrime
Western Digital 18TB WD Red Pro NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, CMR, 512 MB Cache, 3.5" - WD181KFGX18 TB$732.00$40.67HDD · SATAPrime
Western Digital 6TB WD Red NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, SMR, 256MB Cache, 3.5" - WD60EFAXUsed6 TB$249.99$41.67HDD · SATA-
Seagate IronWolf 16TB NAS Internal Hard Drive HDD – CMR 3.5 Inch SATA 6GB/S 7200 RPM 256MB Cache for Raid Network Attached Storage, with Rescue Service (ST16000VN001)16 TB$679.00$42.44HDD · SATA-
Seagate IronWolf Pro SATA III 3.5" Internal NAS Hard Drive, 7200 RPM - 20TB, 2-Pack40 TB$1,699.98$42.50HDD · SATA-
Seagate IronWolf Pro 14 TB NAS RAID Internal Hard Drive - 7,200 RPM SATA 6 Gb/s 3.5-inch (ST14000NE0008)14 TB$602.99$43.07HDD · SATA-
Western Digital WD Red Plus Internal Hard Drive 6 TB CMR 3.5 Inch SATA 5400 rpm 256 MB NAS (Amazon.co.jp Limited)6 TB$262.24$43.71HDD · SATAPrime
Western Digital 8TB WD Red Plus NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD80EFBXUsed8 TB$349.99$43.75HDD · SATA-
Western Digital WD Red Plus Internal Hard Drive 8TB CMR 3.5 inch SATA 5640 RPM 256MB NAS WD80EFPX-AJP Eco Package8 TB$366.36$45.80HDD · SATAPrime
Western Digital 14TB WD Red Pro NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, CMR, 512 MB Cache, 3.5" -WD142KFGX14 TB$649.95$46.43HDD · SATA-
Seagate IronWolf 8Tb NAS Internal Hard Drive HDD – 3.5 Inch SATA 6GB/S 7200 RPM 256MB Cache for Raid Network Attached Storage (ST8000VN0022),Silver8 TB$384.00$48.00HDD · SATA-
Western Digital 4TB WD Red Plus NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, CMR, 128 MB Cache, 3.5" - WD40EFZZ4 TB$194.99$48.75HDD · SATAPrime
Seagate IronWolf 10TB NAS Internal Hard Drive HDD – 3.5 Inch SATA 6Gb/s 7200 RPM 256MB Cache RAID Network Attached Storage Home Servers - (ST10000VN0008)10 TB$500.00$50.00HDD · SATA-
Seagate IronWolf Pro SATA III 3.5" Internal NAS Hard Drive, 7200 RPM - 8TB, 2-Pack16 TB$799.98$50.00HDD · SATA-
Seagate IronWolf, Pro 8TB, Enterprise Internal NAS HDD – CMR 3.5 Inch, SATA 6GB/s, 7,200 RPM, 256 MB Cache for RAID NAS - Frustration Free Packaging (ST8000NTZ01)8 TB$417.14$52.14HDD · SATAPrime
Seagate IronWolf 4TB NAS Internal Hard Drive CMR 3.5 Inch SATA 6Gb/s 5400 RPM 64MB Cache for RAID Network Attached Storage Rescue Services (ST4000VNZ06/006)4 TB$210.99$52.75HDD · SATA-
WD Red Plus 4TB NAS Hard DriveUsed4 TB$211.29$52.82HDD · SATAPrime
WD Red 8TB NAS Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 128MB Cache 3.5 Inch - WD80EFZX8 TB$439.00$54.88HDD · SATA-
Western Digital 8TB WD Red Plus NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD80EFBX8 TB$450.00$56.25HDD · SATA-
Toshiba 10TB N300 NAS Internal HDD - 3.5" SATA-3 512MB Cache 6GB/s 7200RPM Internal Hard Drive 7/24 NAS Unit Server and Security Disk (MN10ADA10TS)10 TB$636.16$63.62HDD · SATA-
Western Digital 6TB WD Red NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, SMR, 256MB Cache, 3.5" - WD60EFAX6 TB$399.90$66.65HDD · SATA-
WD Red Plus 4TB NAS Hard Drive4 TB$316.99$79.25HDD · SATA-
Western Digital 1TB WD Red Plus NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, CMR, 64 MB Cache, 3.5" - WD10EFRXUsed1 TB$91.00$91.00HDD · SATA-
WD Red Plus 2TB NAS 3.5" Internal Hard Drive - 5400 RPM Class, SATA 6 Gb/s, CMR, 64MB CacheUsed2 TB$194.90$97.45HDD · SATA-
Western Digital 1TB WD Red Plus NAS Internal Hard Drive - 5400 RPM Class, SATA 6 Gb/s, CMR, 16 MB Cache, 2.5" - WD10JFCX1 TB$123.88$123.88HDD · SATA-
Western Digital 1TB WD Red Plus NAS Internal Hard Drive HDD - 5400 RPM, SATA 6 Gb/s, CMR, 64 MB Cache, 3.5" - WD10EFRX1 TB$169.94$169.94HDD · SATA-

Frequently asked questions

What is the best nas hard drive?

The best value nas hard drives are at the top of the table above, ranked by price per terabyte on Amazon.com and refreshed daily.

How do I find the cheapest nas hard drive?

Sort by price per terabyte, which the table does by default. The lowest cost per terabyte appears first.

Are prices up to date?

Yes. Prices refresh daily from Amazon.com, and the table re-ranks by price per terabyte each time.

Last updated: 2026-06-26 18:01:42 UTC. As an Amazon Associate we earn from qualifying purchases. Product prices and availability are accurate as of the date indicated on Amazon.com and are subject to change. Any price displayed at the time of purchase will apply. CERTAIN CONTENT THAT APPEARS ON THIS SITE COMES FROM AMAZON SERVICES LLC. THIS CONTENT IS PROVIDED AS IS AND IS SUBJECT TO CHANGE OR REMOVAL AT ANY TIME.