SSDs & NVMe Drives
Ranked by price per gigabyte
Updated daily · No paid placements
Prices refresh twice daily; the final price appears at the retailer's checkout. We may earn a commission from retailer links, at no cost to you — it never affects rankings.
| Rank | Type | Trend | |||||||
|---|---|---|---|---|---|---|---|---|---|
301 | SATA SSD | 1TB | — | $433.90checked 4h ago | $0.434View at Newegg | ||||
302 | SATA SSD | 1TB | — | $449.99checked 4h ago | $0.450View at Newegg | ||||
303 | SATA SSD | 128 GB | — | $57.79checked 5h ago | $0.451View at Amazon | ||||
304 | SATA SSD | 500GB | — | $249.95checked 4h ago | $0.500View at Newegg | ||||
305 | SATA SSD | 500GB | — | $276.40checked 4h ago | $0.553View at Newegg | ||||
306 | SATA SSD | 512GB | — | $295.01checked 4h ago | $0.576View at Newegg | ||||
307 | SATA SSD | 512GB | — | $387.99checked 5h ago | $0.758View at Newegg | ||||
308 | SATA SSD | 240GB | — | $202.99checked 16h ago | $0.846View at Newegg | ||||
309 | SATA SSD | 240GB | — | $224.95checked 5h ago | $0.937View at Newegg | ||||
310 | SATA SSD | 51GB | — | $129.99checked 5h ago | $2.549View at Newegg |
Kingston XS2000 1000GB High Performance Portable SSD with USB-C, SXS2000/1000G (2-Pack)
SanDisk Professional PRO-G40 1TB USB 3.2 Gen 2 Type-C Portable External SSD - SDPS31H-001T-GBCND
Transcend ESD310 128GB External SSD, Up to 1,050MB/s, Dual USB Flash Drive for iPhone/iPad/Mac/Windows, Android/Tablet/PC, USB 3.2 Gen 2 Thumb Drive Photo Stick, 2-in-1 Type C &Type A Memory Stick
iStorage diskAshur M2 500GB - PIN authenticated, hardware encrypted USB 3.2 portable SSD. Ultra-fast, FIPS compliant, Rugged & Portable...
SecureData SecureDrive BT 500GB SSD FIPS 140-2 Level 3 Validated 256-Bit Hardware Encrypted External Portable USB 3.0 - Secure Wireless Unlock via...
WD My Passport SSD 512GB USB 3.1 External Solid State Drive
Apricorn Aegis Fortress FIPS 512 GB 140-2 Level 2 Validated 256-Bit Encrypted USB 3 External SSD (A25-3PL256-S512F)
Transcend JetDrive 500 240GB USB 3.0 / SATA 6Gb/s MLC Internal / External Solid State Drive (SSD) TS240GJDM500
iStorage diskAshur M2 240GB - PIN authenticated, hardware encrypted USB 3.2 portable SSD. Ultra-fast, FIPS compliant, Rugged & Portable...
ORICO 51GB Magnetic External SSD, Aluminum Alloy, Up to 2000MB/s, 4K 120Hz ProRes HDR Record and Store, External Solid State Drive, Compatible with...
Kingston XS2000 1000GB High Performance Portable SSD with USB-C, SXS2000/1000G (2-Pack)
Capacity
1TB
Price
$433.90
$/GB
$0.434
SanDisk Professional PRO-G40 1TB USB 3.2 Gen 2 Type-C Portable External SSD - SDPS31H-001T-GBCND
Capacity
1TB
Price
$449.99
$/GB
$0.450
Transcend ESD310 128GB External SSD, Up to 1,050MB/s, Dual USB Flash Drive for iPhone/iPad/Mac/Windows, Android/Tablet/PC, USB 3.2 Gen 2 Thumb Drive Photo Stick, 2-in-1 Type C &Type A Memory Stick
Capacity
128 GB
Price
$57.79
$/GB
$0.451
iStorage diskAshur M2 500GB - PIN authenticated, hardware encrypted USB 3.2 portable SSD. Ultra-fast, FIPS compliant, Rugged & Portable...
Capacity
500GB
Price
$249.95
$/GB
$0.500
SecureData SecureDrive BT 500GB SSD FIPS 140-2 Level 3 Validated 256-Bit Hardware Encrypted External Portable USB 3.0 - Secure Wireless Unlock via...
Capacity
500GB
Price
$276.40
$/GB
$0.553
WD My Passport SSD 512GB USB 3.1 External Solid State Drive
Capacity
512GB
Price
$295.01
$/GB
$0.576
Apricorn Aegis Fortress FIPS 512 GB 140-2 Level 2 Validated 256-Bit Encrypted USB 3 External SSD (A25-3PL256-S512F)
Capacity
512GB
Price
$387.99
$/GB
$0.758
Transcend JetDrive 500 240GB USB 3.0 / SATA 6Gb/s MLC Internal / External Solid State Drive (SSD) TS240GJDM500
Capacity
240GB
Price
$202.99
$/GB
$0.846
iStorage diskAshur M2 240GB - PIN authenticated, hardware encrypted USB 3.2 portable SSD. Ultra-fast, FIPS compliant, Rugged & Portable...
Capacity
240GB
Price
$224.95
$/GB
$0.937
ORICO 51GB Magnetic External SSD, Aluminum Alloy, Up to 2000MB/s, 4K 120Hz ProRes HDR Record and Store, External Solid State Drive, Compatible with...
Capacity
51GB
Price
$129.99
$/GB
$2.549
Buy Cheap SSDs: Find the Best Solid State Drive Deals in 2026
Looking for the best SSD deals? BuyPerUnit compares 1398+ NVMe and SATA SSDs ranked by price per gigabyte — the only metric that shows you which drives offer the best value for your money.
Right now, the cheapest SSD storage starts at just $0.000/GB, while the average across all drives is $0.805/GB. Whether you're building a gaming PC, upgrading a laptop, or adding storage to a PS5, we help you find the best deal. Need bulk storage? Compare hard drives here.
SSD Buying Guide: NVMe vs SATA and What to Look For
1. Check Your Motherboard First
Before buying an NVMe SSD, confirm your motherboard has an M.2 slot and which PCIe generation it supports. Most boards since 2018 have at least one M.2 slot. Check your manual or specs page before ordering.
2. Gen 4 in a Gen 3 Slot Still Works
A PCIe Gen 4 NVMe drive installed in a Gen 3 slot will run at Gen 3 speeds (~3,500 MB/s max). You won't get Gen 4's full 7,000 MB/s, but the drive is fully compatible. Gen 4 drives are often the same price as Gen 3 — buy them anyway for future upgrades.
3. Bigger = Lower $/GB
A 2TB NVMe at $120 ($0.059/GB) beats a 1TB at $70 ($0.068/GB) in value. If your budget allows, buying a larger drive saves money per GB and avoids running out of space sooner.
4. SATA for Older Laptops
If you're upgrading a laptop more than 4–5 years old, it likely has a 2.5" SATA slot rather than M.2. A SATA SSD will still be 5–10x faster than the HDD it replaces and gives the machine a new lease on life.
NVMe vs SATA SSD: Which Should You Buy?
| Type | Typical $/GB | Speed | Best For |
|---|---|---|---|
| NVMe Gen 3 (M.2) | $0.050–0.080 | 3,000–3,500 MB/s | Gaming PC, OS drive, general fast storage |
| NVMe Gen 4 (M.2) | $0.055–0.090 | 5,000–7,000 MB/s | PS5 expansion, AMD Ryzen, Intel 12th gen+ |
| NVMe Gen 5 (M.2) | $0.10–0.20 | 10,000–14,000 MB/s | Workstations, enthusiast builds |
| SATA SSD (2.5") | $0.045–0.070 | 500–560 MB/s | Older laptops, SATA-only desktops |
| External Portable SSD | $0.07–0.15 | 500–2,000 MB/s | Portable storage, video editing on-the-go |
Frequently Asked Questions About SSDs
What is the cheapest SSD per GB right now?
Do I need NVMe Gen 4 or is Gen 3 fast enough?
What SSD brands are most reliable?
Which SSD should I buy for a PS5?
When is the best time to buy cheap SSDs?
How We Find the Cheapest SSDs
BuyPerUnit calculates the price per gigabyte for every SSD by dividing the current price by the storage capacity. This gives you the true cost of storage, making it easy to compare NVMe and SATA drives of different sizes.
Products are ranked from best value (lowest $/GB) to worst. We update prices regularly from Amazon, Best Buy, and Newegg to ensure you always see current deals. Click any product to view the latest price and purchase directly.
BuyPerUnit is an affiliate site. We earn a commission when you purchase through our links at no extra cost to you.