diskprices.com

Disk Prices (US) is a price-comparison site that lists hard drives, SSDs, and other storage media sold on Amazon, sorted by price per TB (with price per GB also shown) so you can compare value across capacities and product types. It doesn't sell anything itself; it earns money through paid affiliate links. It's most useful when you want to judge cost-efficiency across many Amazon listings at once rather than browse one product page at a time.

What the site actually does

The site pulls listing data from Amazon storefronts and presents it as a sortable table. Each row shows:

• Price per GB and price per TB — the primary sorting signal
• Price and capacity of the item
• Warranty where the listing states one
• Form factor and technology (for example, 3.5" internal, M.2 NVMe, LTO tape)
• Condition (new or used)
• An affiliate link to the Amazon listing

Because the default order is price per TB, the cheapest rows at the top are often high-capacity tape media rather than consumer drives. In the current listing, for example, LTO-9 tape cartridges at 18 TB appear at roughly $4.89–$5.56 per TB, ahead of most flash and drive products. That's a sorting artifact, not a recommendation — tape is a backup/archive medium and needs a compatible drive.

Coverage and filters

The page exposes filters for data source (Amazon US, UK, Germany, Spain, France, Italy, Canada, Australia, India, Sweden, Ireland), condition, capacity range, and a long list of product categories:

This breadth is the main differentiator: you can compare a microSD card, an NVMe drive, and an LTO tape cartridge on the same cost-per-TB scale, then filter down to the category you can actually use.

How to use it for a buying decision

1. Pick your data source so prices and currency match where you can buy.
2. Filter by category and form factor first — this removes media you can't use (tape without a tape drive, SAS without a SAS controller).
3. Set a capacity range to exclude tiny or oversized items that skew the per-TB math.
4. Sort or read by price per TB, then check the warranty and condition columns on the shortlisted rows.
5. Follow the affiliate link to confirm the live Amazon price, seller, and shipping before buying — the table is a snapshot, and Amazon prices change.

Common pitfalls

• Per-TB ranking favors bulk and tape. A 20-pack of LTO cartridges will always beat a single consumer SSD on this metric; filter by category before drawing conclusions.
• Multi-packs distort capacity. Rows like "18 TB x20" show the per-unit capacity but a total price for the pack — check the multiplier before comparing.
• Used and new are mixed unless you filter by condition; a low per-TB price may reflect used stock.
• Warranty is only shown when the listing states it, so a blank cell doesn't mean no warranty.

When it's the right tool — and when it isn't

Use Disk Prices (US) when you already know the category and form factor you need and want to find the best cost per terabyte across many Amazon listings, or when you're curious how storage types compare on a single scale. Skip it if you need spec-level detail (endurance ratings, controller models, sequential speeds), need a retailer other than Amazon, or want current stock and delivery estimates — those require opening the linked listing. The site also states it is supported by affiliate links, so treat its ordering as a price signal, not an endorsement.

Disk Prices (US) is funded through paid affiliate links, and the site discloses this directly. When you click a listing and buy on Amazon, the site may earn a commission at no extra cost to you. The site also shows affiliate status alongside listings, so you can see which links are monetized. The available evidence does not establish that commissions change the order or selection of listings; the site describes its results as a comparison of Amazon drives sorted by price per TB.

What the site says about its funding

The footer of Disk Prices (US) states: "This site is supported by paid affiliate links. Learn more." That "Learn more" points to the site's FAQ and privacy policy pages, which are the places to check for details on data sources and link practices.

In practical terms:

• Cost to you: clicking through and buying does not add a surcharge; the commission comes out of Amazon's side of the sale.
• Disclosure: the affiliate nature of links is stated on the site rather than left implicit.
• Where to verify: the FAQ and privacy policy pages are the authoritative place for how data and links are handled.

Does affiliate funding change what you see?

The site's stated purpose is to compare hard drives and SSDs on Amazon, sorted by price per TB. The page evidence shows the table columns include Price per GB, Price per TB, Price, Capacity, Warranty, Form Factor, Technology, Condition, and Affiliate Link — the last of which marks monetized links per row.

What the evidence supports:

What the evidence does not establish: whether commission rates influence which products appear, how often the data refreshes, or whether every row carries the same affiliate arrangement. Treat the sort order as a price-per-TB comparison and use the Affiliate Link column to identify monetized entries.

How to use this as a buyer

1. Read the sort column first. The table is organized by price per TB (and price per GB), so the cheapest-per-terabyte items appear near the top — including tape media, which can dominate the low end.
2. Check the Technology and Form Factor columns. A low price per TB on LTO tape is not comparable to an internal SSD for everyday use; match the category to your actual need.
3. Note the Condition column. New and Used items are both listed, so confirm condition before assuming a price is for new hardware.
4. Use the Affiliate Link column as a transparency cue. It tells you which links are monetized; the purchase price on Amazon is the same either way.
5. Cross-check on Amazon. Because the site aggregates Amazon listings across multiple storefronts (amazon.com, amazon.co.uk, amazon.de, and others), confirm the seller, warranty, and shipping terms on the Amazon page itself.

Common points of confusion

• "Supported by affiliate links" does not mean pay-to-rank. The disclosure explains revenue, not ranking methodology. If ranking methodology matters to you, the FAQ is the place to look.
• Low price per TB is not always the right buy. Tape media (LTO-8, LTO-9) frequently tops the price-per-TB sort, but it requires compatible drives and is suited to archival use, not general storage.
• The site is a comparison layer, not a retailer. Purchases happen on Amazon; the site's role is to sort and display listings with price-per-capacity metrics.

If your goal is simply to find the lowest cost per terabyte for a given drive type, start from the category filters (Internal SSD, M.2 NVMe, External 3.5", and so on), then read down the price-per-TB column. The affiliate arrangement is disclosed and marked, and the purchase itself takes place on Amazon at the listed price.

Disk Prices (US) pulls its listings from Amazon marketplaces, not from a single store. The site's data-source line names amazon.com, amazon.co.uk, amazon.de, amazon.es, amazon.fr, amazon.it, amazon.ca, amazon.com.au, amazon.in, amazon.se and amazon.ie. So a row you see can originate from the US site or from a European, Canadian, Australian, Indian or Irish Amazon storefront. Treat every figure as a snapshot taken when the data was collected, and confirm the live price on the linked Amazon listing before you buy.

What the marketplace list means for a given row

The site presents one combined table rather than separate tables per country. Each row carries an affiliate link out to the Amazon listing, and the price shown is whatever that listing displayed at collection time.

Two consequences follow:

• Currency is not normalized in the display. A listing sourced from amazon.co.uk, amazon.de or amazon.fr is priced in that marketplace's currency, while amazon.com and amazon.ca listings use theirs. A low number in the price column is not automatically a cheaper drive — check which store the row links to.
• Availability is regional. A drive offered on amazon.de may not ship to a US address, and the same model on amazon.com may carry a different price or be out of stock. The comparison is useful for spotting models and price-per-TB outliers, not for assuming you can buy any row from any country.

A concrete example

Suppose you filter to internal 3.5" drives and sort by price per TB. The cheapest rows might include a high-capacity tape cartridge (the excerpt shows LTO-9 18 TB cartridges at roughly $5 per TB) alongside flash media and SSDs. Before acting on the top row, open its affiliate link: if it resolves to amazon.co.uk, the total is in pounds and delivery to your location may differ from the US listing of the same product.

How to use the marketplace mix when comparing

1. Set your filters first — condition (new/used), capacity range, and the technology or form factor you actually need. The site's category list is broad: rotational drives, internal and external SSDs, M.2 SATA and NVMe, U.2/U.3, plus memory (DDR4/DDR5 in UDIMM, SODIMM and RDIMM), removable flash, optical and tape.
2. Read the price-per-TB column, then check the source store behind the affiliate link.
3. Verify on Amazon — confirm the current price, the seller, the warranty term shown in the row, and whether the item ships to you.
4. Re-check before buying. Prices on Amazon change; the site's figures are historical snapshots, not live quotes.

Common sticking points

• Mixing currencies in one sort. Because rows from different marketplaces sit in the same table, a straight sort by price can put a foreign-currency bargain at the top. Convert before you conclude it is cheaper.
• Warranty and condition fields vary by listing. The table shows warranty where the listing provides it (for example "2 years" on some tape packs) and marks condition as New or Used. Do not assume these carry over between the same product on different Amazon stores.
• Affiliate links. The site states it is supported by paid affiliate links, so the outbound link is how you reach the actual Amazon page — use it to confirm details rather than relying on the table alone.

Quick reference

Disk Prices (US) ranks storage listings by price per terabyte (price per TB), calculated as the listed price divided by the drive's capacity in terabytes. The site pulls listings from Amazon marketplaces and presents them in a sortable table, so the top of the list shows the cheapest storage per unit of capacity rather than the lowest sticker price. This matters because a $99 18 TB tape cartridge and a $100 2 TB flash card look similar in absolute cost but differ by roughly an order of magnitude in cost per TB.

How the metric is built

The calculation itself is simple division, but three inputs shape the result:

• Listed price — the current Amazon price for that listing, including multi-packs where the price covers the whole bundle.
• Capacity in TB — the drive's stated capacity, converted to terabytes so that GB- and TB-rated products compare on the same scale.
• Price per GB — the same figure divided by 1,000, shown alongside price per TB for finer-grained comparison between closely matched drives.

Because the site also displays capacity, warranty, form factor, technology, and condition as separate columns, you can see why a listing ranks where it does rather than trusting a single number.

A worked example from the listing data

The top of the table is dominated by LTO-9 tape media:

The $10 microSD listing and the $880 ten-pack of LTO-9 cartridges land at nearly the same price per TB despite a price difference of nearly two orders of magnitude. That is the core value of the sort: it strips out sticker price and exposes cost per unit of capacity.

Note also the multi-pack rows. An 18 TB ×10 pack is treated as 180 TB of total capacity against the bundle price, which is why bulk tape packs cluster near the top. If you only need one cartridge, the per-TB figure for the single-unit listing ($99 for 18 TB, about $5.50/TB) is the number to compare against.

Why sorting this way changes your decision

Lowest sticker price and lowest cost per TB often point to different products. Sorting by price per TB surfaces the second question — what am I paying for each terabyte? — which is usually the one that matters for bulk storage, backup targets, and archival media.

Two patterns follow from the data:

• High-capacity media tends to win on cost per TB. Tape and large hard drives spread their fixed costs over more capacity, so they rank above small flash cards even when the absolute price is higher.
• Small-capacity items can still compete. The 2 TB microSD at $10 shows that flash isn't automatically expensive per TB — but you are buying convenience and physical size, not bulk capacity.

The sort doesn't tell you which drive is right; it tells you which drive is cheapest per terabyte within whatever filters you've applied.

Using the filters to make the sort meaningful

A global price-per-TB ranking mixes tape, NVMe SSDs, memory modules, and optical media — categories that aren't substitutes for each other. The page provides filters that narrow the list before the sort does its work:

• Technology — Tape, Solid State, Hybrid, Rotational, Volatile (DDR4/DDR5 memory), Removable flash, Optical, and others.
• Form factor — External 3.5", External 2.5", Internal 3.5", Internal 2.5", M.2 SATA, M.2 NVMe, U.2/U.3, and tape generations LTO-3 through LTO-10.
• Condition — New or Used.
• Capacity range — set a minimum and maximum in GB or TB.
• Rotational and External toggles — quick switches for spinning disks and external enclosures.

A practical sequence: pick your technology and form factor first, set a capacity floor if you need a minimum size, then read the price-per-TB column top to bottom. Comparing an LTO-9 tape against an M.2 NVMe drive on price per TB is technically valid but tells you nothing useful about which to buy.

Reading the table columns

Each row carries the fields you need to sanity-check a ranking: price per GB, price per TB, absolute price, capacity, warranty (where listed), form factor, technology, condition, and the affiliate link to the Amazon listing. Warranty coverage varies by listing — some rows show two years, others show none — so check that column before treating a low per-TB figure as the final word.

Limits worth knowing

• Prices are Amazon listings, not a market index. They reflect what Amazon and its sellers charge at the time of the snapshot, and they change.
• Multi-pack pricing distorts per-unit intuition. A ten-pack's per-TB figure assumes you want all ten units; divide by unit count if you don't.
• The site is affiliate-supported. Links to Amazon are paid affiliate links, as stated on the page. That doesn't change the arithmetic, but it's the site's business model.
• Not every category is a like-for-like comparison. Memory modules (DDR4/DDR5) and optical media appear in the same table as drives; filter them out unless you're actually shopping for them.

The takeaway

Disk Prices (US) answers one question well: which storage costs least per terabyte? It computes price ÷ capacity in TB, displays price per GB alongside, and lets you filter by technology, form factor, condition, and capacity so the ranking compares things you'd actually consider buying. Use the filters to define your category, then read the price-per-TB column — and check capacity, warranty, and pack size before acting on the top row.

Disk Prices (US) lets you browse storage by category first, then narrow results with filters for capacity, condition, form factor, and technology. The categories cover hard drives, SSDs, tape, flash media, optical discs, and even RAM, while the filters and sort options let you compare listings by total price, price per GB, price per TB, capacity, warranty, or technology. All listings are drawn from Amazon storefronts, and the site notes that it is supported by paid affiliate links.

Storage categories you can browse

The category list is organized by drive type and media format rather than by brand:

A few practical notes on using these categories:

• M.2 SATA vs. M.2 NVMe are separate categories, so you can compare drives by interface without filtering out the other type manually.
• Tape is split by LTO generation (LTO-3 to LTO-10). The sample listings show LTO-9 and LTO-8 cartridges sold in single units and multi-packs (5, 10, or 20), with native capacities such as 18 TB for LTO-9 and 12 TB for LTO-8.
• RAM modules appear alongside storage, which is useful if you are pricing a full build or upgrade in one place.

Filters that narrow the results

After choosing a category, these filters apply:

• Capacity range — set a minimum and maximum, entered in GB or TB.
• Condition — New or Used.
• Form factor — for example, internal vs. external and 2.5" vs. 3.5".
• Technology — rotational vs. solid state, plus the interface-specific categories above.

The capacity filter is the most direct way to answer a specific need. For example, if you want an 18 TB LTO-9 tape cartridge, select the LTO-9 tape category and set the minimum capacity to 18 TB; the results will show single cartridges and multi-packs, and you can compare their price per TB directly.

Sort options

Results can be sorted by:

• Price
• Price per GB
• Price per TB
• Capacity
• Warranty
• Technology

Sorting by price per TB is the site's default framing and the most useful view when you are comparing drives of different sizes. Sorting by warranty helps when you want longer coverage; the sample listings show warranty terms such as 2 years on some tape packs, while other listings show no warranty field.

What the listings show

Each result row includes price per GB, price per TB, total price, capacity, warranty (when listed), form factor, technology, condition, and an affiliate link to the Amazon listing. The data source covers Amazon sites in the US, UK, Germany, Spain, France, Italy, Canada, Australia, India, Sweden, and Ireland, so availability and pricing can vary by storefront.

One caveat worth knowing: the cheapest price-per-TB results are often tape media sold in bulk packs, not consumer drives. If you are shopping for a desktop SSD or HDD, start from the relevant solid state or rotational category rather than the unfiltered top of the list, or you will mostly see LTO tape cartridges.