Best HDD Deals Right Now
The cheapest hard drives available today, ranked by cost per terabyte. I track prices across Amazon.com daily so you can find genuine value without digging through dozens of listings.
Quick Verdict
- Who this is for
- Anyone hunting for the lowest cost per terabyte on a hard drive, NAS builders, Plex hoarders, backup shoppers, and bulk-storage buyers.
- What usually wins
- Whatever tops the live price-per-TB ranking today, not a fixed capacity. Avoid tiny 2–4 TB drives, but in the 2026 crunch the best value is often a mid-capacity drive rather than the very largest, so trust the table over a rule of thumb. Refurbished enterprise pulls if you can accept a seller warranty instead of manufacturer coverage.
- Prioritise
- Lowest price per TB at your target capacity. Check both new and refurbished sections, the best deal shifts daily.
Prices updated daily from Amazon.com. All links go directly to the retailer. Details.
Bottom line: the lowest price-per-TB pick on this page right now is the HP 3.5-Inch 4000 GB Hot-Swap 2 MB Cache Internal Hard Drive 693687-B21, 4 TB new, at $95.18 ($23.80/TB) on Amazon.com. Check the current price.
Best Value New HDDs
New hard drives offering the lowest cost per terabyte, brand-new retail units with full manufacturer warranty.
HP 3.5-Inch 4000 GB Hot-Swap 2 MB Cache Internal Hard Drive 693687-B21
HGST Ultrastar He8 Helium 6TB 3.5-Inch 7200RPM SATA ULTRA 512e SE 128MB Cache Internal Bare or OEM Hard Drive - HUH728060ALE604 / 0F23669
HGST Ultrastar 7K6000 HUS726060ALE610 0F23001 6TB 7200 RPM SATA 3.5" 512E ISE 128MB Cache Enterprise Hard Drive
Seagate ST6000NM0024 6TB 7.2K SATA 3.5" HDD
Hitachi 0F23001 6TB 7.2K 3.5" SATA 6Gbps HDD
HGST Ultrastar He12 | HUH721212ALE601 | 0F27454 | 12TB 7200 RPM 256MB SATA 6.0Gb/s 3.5" Cache | 512E | BitLocker Hard Drive Encryption | Power Disable Function |
MDD MAXDIGITALDATA 12TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5-inch Internal Hard Drive for Surveillance Storage (MD12TBGSA25672DVR) - 3 Years Warranty
WL 6TB 5700RPM 128MB Cache SATA III (6.0Gb/s) 3.5" Enterprise Datacenter Hard Drive (Server, RAID, NAS, CCTV DVR) - 1 Year Warranty
High-Capacity Deals (8 TB+)
Large-capacity drives for NAS builders, media libraries, and anyone who needs raw terabytes at a fair price.
MDD MAXDIGITALDATA 12TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5-inch Internal Hard Drive for Surveillance Storage (MD12TBGSA25672DVR) - 3 Years Warranty
HGST Ultrastar He12 | HUH721212ALE601 | 0F27454 | 12TB 7200 RPM 256MB SATA 6.0Gb/s 3.5" Cache | 512E | BitLocker Hard Drive Encryption | Power Disable Function |
T2YHT 0T2YHT 12TB 7.2K 6Gb/s SATA 3.5" Hard Drive HUH721212ALE600
X16 12TB 3.5" Hard Drive ST12000NM009G 7.2K 2MT233-150 7KT9W
10TB 3.5" 6Gbps 7.2K SATA Hard Drive RVFR2 HUH721010ALE600
MDD (MDD18TSATA25672DVR) 18TB 7200RPM 256MB Cache SATA 6.0Gb/s 3.5inch Internal Surveillance Hard Drive - 3 Years Warranty
HEWLETT PACKARD ENTERPRISE HPE 10TB 6G SATA 7.2K LFF 512E LP HDD
HDDTECH 10TB 7200RPM 256MB Cache SATA 6.0Gb/s 3.5inch Internal Surveillance Hard Drive - 3 Years (HDT10TS25672DVR)
Refurbished & Used HDD Bargains
Recertified enterprise pulls and used drives at steep discounts. Many include seller warranties and are tested before resale.
Seagate Constellation Es.3 St4000nm0023 4 Tb 3.5 Internal Hard Drive
SAS interface. Needs a host bus adapter, it will not plug into a normal motherboard.
Pulled 529FG ST4000NM0023 4TB 3.5 7.2K 6Gb SAS Hard Drive
SAS interface. Needs a host bus adapter, it will not plug into a normal motherboard.
HP 695842-001 4TB SAS Hard Drive Disk (HDD) - 7,200 RPM, 3.5-inch form factor, SmartDrive Carier (SC), Midline (MDL), 6Gb per second Transfer Rate (TR)
SAS interface. Needs a host bus adapter, it will not plug into a normal motherboard.
Western Digital Re 4TB SAS Datacenter Capacity Hard Drive 3.5 inch 7200 RPM 32MB Cache | WD4001FYYG |
SAS interface. Needs a host bus adapter, it will not plug into a normal motherboard.
Seagate 4TB Enterprise Capacity SAS 12Gb s 512n 3.5" Internal Hard Drive Model ST4000NM0025
SAS interface. Needs a host bus adapter, it will not plug into a normal motherboard.
HKRVPXD EXOS 7E8 SAS HDD ST8000NM0075 8TB 7.2K 7200Rpm 256MB 12Gbps Enterprise Capacity 3.5 HDD Hard Drive for Server
SAS interface. Needs a host bus adapter, it will not plug into a normal motherboard.
SEAGATE TECHNOLOGY ST4000NM0023 HDD 4TB 7200RPM SAS 128MB 5 YEAR WAR 20-BOX
SAS interface. Needs a host bus adapter, it will not plug into a normal motherboard.
HGST Ultrastar 7K4000 4TB 3.5" 7200 RPM SAS 12Gb/s 64MB Cache Internal Enterprise Hard Drive - HUS724040ALS640
SAS interface. Needs a host bus adapter, it will not plug into a normal motherboard.
Cite or embed this data
Cite this data
Writing about drive prices? Quote the number and link back — no permission needed.
HDDHunt Price-Index (October 2026): the cheapest new internal hard drive on Amazon US runs roughly $24–$41 per terabyte, and cost per terabyte barely tracks capacity — in this October 2026 snapshot 4TB leads at $23.80/TB and 24TB is dearest at $41.46/TB — so the best value per terabyte is whichever drive tops the live ranking rather than a fixed capacity. Source: HDDHunt, https://hddhunt.com/cheapest-hdd-per-tb/
Embed the live widget
Running a homelab, NAS or data-hoarding blog? Drop this live “Cheapest $/TB today” card into any post — it refreshes with our daily snapshot, so it stays useful with zero upkeep. No account, no permission needed.
<iframe src="https://hddhunt.com/embed/cheapest-hdd-per-tb" width="320" height="300" loading="lazy" style="border:1px solid #e5e7eb;border-radius:12px;max-width:100%" title="Cheapest HDD per TB — HDDHunt"></iframe>
Platform strips iframes? Use this image link instead — it renders a live card that refreshes daily and still links back to us:
<a href="https://hddhunt.com/cheapest-hdd-per-tb/"><img src="https://hddhunt.com/embed/cheapest-hdd-per-tb.png" alt="Cheapest HDD per TB today — HDDHunt" width="480" style="max-width:100%"></a>
How to Choose
Getting the best HDD deal is mostly about timing and knowing where to look. Here are the factors that matter most.
Price per TB
The single most important metric for value buyers. A lower total price does not mean a better deal if the drive is smaller, always compare on a per-TB basis.
New vs refurbished
New drives include a manufacturer warranty (typically 2–5 years). Refurbished datacenter pulls are often 40–60% cheaper but come with shorter seller warranties. Both are valid depending on your risk tolerance.
Capacity
Tiny 2–4 TB drives are almost always the worst value per TB, so avoid them if you can. But do not assume the largest drive wins either: through the 2026 shortage the very biggest capacities have often been poor value per TB while mid-capacity drives undercut them. Read the live table rather than reaching for the highest number.
Recording technology
CMR drives handle random writes and RAID rebuilds better than SMR. For single-drive use or sequential workloads, SMR is fine and often cheaper.
Frequently Asked Questions
What is a good price per TB for a hard drive in 2026?
There is no fixed answer, because the number moves. Drive prices rose sharply through 2026 on datacenter demand, so a figure quoted a few months ago is usually well below what you can actually buy today. The reliable method is to compare against the current market rather than a remembered number: sort the table on this page by price per TB and see where the drive you are considering sits. Tiny 2–4 TB drives are almost always the worst value per terabyte, but do not assume the largest capacity is the cheapest either — through the 2026 shortage that has often inverted, with mid-capacity drives undercutting the biggest ones. Refurbished enterprise pulls are usually the cheapest route of all if you can accept a shorter warranty.
Are refurbished hard drives reliable?
Datacenter pulls (drives retired from server farms after 3–5 years) are generally reliable. They were built for 24/7 operation and often have plenty of life left. The trade-off is a shorter seller warranty (typically 1–2 years) instead of a manufacturer warranty.
Should I buy one large drive or several smaller ones?
A larger drive usually beats a stack of tiny ones on price per TB and uses less power, but the curve is not a straight line — in the 2026 shortage the very largest capacities have often been poor value per TB, so check the live ranking rather than always reaching for the biggest. Multiple smaller drives do allow for RAID redundancy, so if you are building a NAS with parity, several mid-capacity drives make sense. For simple bulk storage or backup, one right-sized drive from the top of the table is usually most cost-efficient.
What is the difference between CMR and SMR hard drives?
CMR (Conventional Magnetic Recording) writes tracks side by side and handles random writes well. SMR (Shingled Magnetic Recording) overlaps tracks for higher density but struggles with random writes and RAID rebuilds. For NAS or RAID use, stick with CMR. For sequential backup or cold storage, SMR is fine and often cheaper.
Related Guides and Articles
Best NAS Hard Drives
Compare NAS hard drive prices from Seagate IronWolf and WD Red. CMR drives ranked by price per TB for Synology, QNAP, TrueNAS, and Unraid builds.
Buying guideBest Enterprise Hard Drives
Compare enterprise HDD prices for Seagate Exos and WD Ultrastar. Datacenter-grade drives sorted by price per TB for servers and storage arrays.
Buying guideBest External Hard Drives
Compare external hard drives and portable SSDs sorted by price per terabyte. Find the best USB drives for backup, travel, and extra storage on Amazon.com.
Buying guideCheapest Hard Drives per Terabyte (2026)
Find the absolute cheapest hard drives per terabyte in 2026. New and refurbished HDDs ranked by cost per TB across Amazon.com, updated daily.
Buying guideSSD vs HDD Price Comparison
Compare SSD and HDD prices per terabyte side by side. See how much more (or less) you pay for SSD speed vs HDD capacity across Amazon.com in 2026.