How to Check Current HDD Prices and Find the Best Price per TB

Updated

The most reliable way to judge whether an HDD is cheap is to compare price per TB, not total price. A $120 8TB drive ($15/TB) is a better deal than a $90 4TB drive ($22.50/TB), even though the second one costs less at checkout. On PricePerGig.com you can sort live Amazon.com (US) listings by $/TB and filter by capacity, type, interface, form factor, condition, warranty, and brand — which is exactly the workflow this guide walks through.

Why price per TB is the only fair comparison

Two drives with the same capacity can differ by 2x in $/TB depending on condition, warranty, and whether they're internal or external. Total price hides that. Price per TB normalizes it.

Quick math you can do yourself:

  • $/TB = price ÷ capacity in TB
  • A 12TB drive at $180 → $15/TB
  • A 20TB drive at $280 → $14/TB
  • A 4TB drive at $70 → $17.50/TB

The 20TB drive wins on value even though it costs the most money. Whether that matters depends on whether you actually need 20TB of space — see the decision table below.

Step-by-step: checking current HDD prices

  1. Open the price comparison page for your region. PricePerGig.com lists stores across 20+ retailers in 11 countries, including Amazon.com, eBay.com, Newegg.com, and Seagate.com for the US.
  2. Set the price range. The site offers a range from $1 up to $500+, so you can exclude enterprise drives above your budget.
  3. Filter by type. Select "HDD" under All Types to remove SSDs, NVMe, flash drives, and tape from the results.
  4. Narrow by capacity. Use the "At Least" and "Up To" dropdowns (1GB through 32TB) to bracket the size you need — for example, At Least 8TB and Up To 20TB.
  5. Choose form factor and interface. Internal 3.5" with SATA is the standard desktop/NAS choice; External 3.5" if you want plug-and-play.
  6. Set condition and warranty. Filter to New, Refurbished, Open Box, or Used, and require a minimum warranty (1 month up to 5 years).
  7. Sort by $/TB. This is the key step — the cheapest total price is rarely the best value.
  8. Cross-check the listing. Confirm the drive is sold by a reputable seller and that the warranty terms match what you filtered for.

Expected result: a short list of drives ranked by cost per terabyte, each with its condition, warranty, and retailer visible, so you can pick the best value for your actual capacity need.

What actually moves the $/TB number

Factor Effect on $/TB What to check
Capacity Larger drives usually cost less per TB Don't buy more than you'll fill in ~2 years
Condition Used/refurb can be far cheaper per TB Warranty length and seller reputation
Warranty Longer warranty often costs more per TB 1–5 year filters available on the site
Brand Samsung, WD, Seagate, Toshiba, HGST, etc. Trusted vs. budget vs. unlisted brand filters
Interface SATA vs. SAS vs. USB Match your enclosure or NAS backplane
Form factor Internal 3.5" vs. External 2.5" External drives often can't be shucked cleanly

New vs. refurbished vs. used: the real trade-off

  • New: highest $/TB, full manufacturer warranty, lowest risk.
  • Open box: often 10–20% cheaper per TB, warranty may be shortened or transferred.
  • Refurbished: best $/TB for bulk storage, but warranty is usually seller-provided and shorter.
  • Used / for parts: cheapest per TB, no meaningful warranty — only worth it for non-critical data or a lab/test setup.

The site lets you filter by "Any Warranty" from 1 month up to 5 years, so you can decide how much risk you're willing to trade for a lower $/TB.

Choosing based on your situation

Your need Best filter combination
Primary desktop drive New, Internal 3.5", SATA, 1 year+ warranty
NAS / bulk archive New or Refurbished, 8TB+, 2 year+ warranty
Budget backup Refurbished or Open Box, 4–8TB, 6 month+ warranty
Portable storage External 2.5", USB, New
Test lab / non-critical Used, any warranty, sort by lowest $/TB

Common pitfalls

  • Sorting by total price instead of $/TB — the single most common mistake.
  • Ignoring warranty length when comparing a cheap refurb against a new drive.
  • Buying external drives to shuck — some models have soldered USB boards and can't be used internally.
  • Assuming a bigger drive is always better value — it usually is per TB, but only if you'll use the space.
  • Skipping the region/store filter — prices and availability differ significantly between Amazon.com, eBay.com, Newegg.com, and Seagate.com.

Verifying you found a real deal

After filtering, sanity-check your pick: compare its $/TB against at least two other listings of similar capacity and condition, confirm the warranty meets your minimum, and check that the seller is the retailer or an authorized reseller. If a price looks dramatically lower than everything else at the same capacity and condition, treat it as a red flag and read the listing details before buying.