DatacenterDisk
WD

WD_Black SN7100 4TB NVMe SSD

B0DZK9C789
ps54TBNVMe-PCIe4M.2 2280
$145.00/TB
$579.99
newIn Stock
This offer: sold by Newegg Business · Amazon says New / Unknown
Price updated
Price accurate as of Oct 6, 2026, 07:06 AM
Buy on Amazon

The WD_Black SN7100 4TB NVMe SSD is a 4TB NVMe-PCIe4 PS5-SSD in new condition. It is in stock at $579.99 - $145.00/TB.

Before you buy: check the bay and the lanes

U.2 and U.3 drives need a backplane wired for NVMe or an adapter carrying PCIe lanes to the bay - a SAS backplane will not do it. Check your chassis supports NVMe in the slot you plan to use before ordering. NVMe drive prices and form factors

Same capacity, other options
DriveInterfaceCond$/TBPrice
fanxiang 4TB NVMe SSD PCIe Gen 4 Gaming SSD for PS5NVMe-PCIe4New$137.50$549.99Buy
Fikwot FN990 4TB NVMe SSD M.2 2280 PCIe Gen4x4 with RGB HeatsinkNVMe-PCIe4New$137.50$549.99Buy
Addlink A93 4TB Storage Expansion for PS5 Console with HeatsinkNVMe-PCIe4New$138.61$554.44Buy
MOVE SPEED SPEED HB7450 4TB Internal Solid State Drive for PS5 with Heatsink TLCNVMe-PCIe4New$140.00$559.99Buy

All 4TB drives we track, ranked by cost per terabyte.

Model context

Part of the WD line we track.

Quick Verdict

The WD_Black SN7100 4TB NVMe SSD delivers enterprise NVMe performance at $145.00/TB. Suited to read-intensive cloud workloads and mixed enterprise applications. Verify U.2/U.3 backplane compatibility before ordering.

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Specifications

Capacity4TB
Form FactorM.2 2280
InterfaceNVMe-PCIe4
Recording Tech—
Sector Size—
Workload Rating—
Warranty5 years
ASINB0DZK9C789
Market context

Against every other drive we have an in-stock price for today, this one is cheaper per tb than 83% of them (94 of 113). The cheapest we can currently buy is $109.75/TB; the middle of the market is $184.00/TB.

Where the wider market has moved

These are third-party figures about the retail market as a whole, quoted and dated. They are not our own measurements and they do not describe this specific drive.

Compare against every 4TB drive we track →Cheapest per terabyte, all categories →
How it compares - 4TB NVMe-PCIe4
#1WD_Black SN7100 4TB NVMe SSDTHIS DRIVE
$145.00/TB
#2Silicon Power 4TB US75 Nvme PCIe Gen4 M.2 2280 SSD R/W Up to 7,000/6,500 MB/s with
$164.00/TB
#3Samsung SSD 990 PRO with Heatsink 4TB
$170.00/TB
#4Acer Predator GM7 4TB SSD: M.2 2280 PCIe Gen 4 x4 NVMe 2.0
$175.75/TB
#5WD_Black SN8100 4TB NVMe SSD with Heatsink
$184.75/TB

Compare to similar 4TB NVMe-PCIe4 drives

Fikwot
FX660 4TB M.2 SSD
$127.50/TB
$509.99
new
This offer: sold by Fikwot · Amazon says New / Unknown
Silicon Power
4TB US75 Nvme PCIe Gen4 M.2 2280 SSD R/W Up to 7,000/6,500 MB/s with
$164.00/TB
$655.98
new
This offer: sold by First Harmonic Limited · Amazon says New / Unknown
Samsung
SSD 990 PRO with Heatsink 4TB
$170.00/TB
$679.99
REFURB
This offer: sold by New Sun Mart (S/N Recorded） · Amazon says Used / VeryGood · New Sun Mart (S/N Recorded）'s note: Used, but in excellent condition without any issue, no original box.
Acer
Predator GM7 4TB SSD: M.2 2280 PCIe Gen 4 x4 NVMe 2.0
$175.75/TB
$702.99
new
This offer: sold by BIWIN Tech · Amazon says New / Unknown
WD
WD_Black SN8100 4TB NVMe SSD with Heatsink
$184.75/TB
$739.00
REFURB
This offer: sold by MobileMonster · Amazon says Used / LikeNew

Also appears in

PS5 SSDs
Brands
Prime Big Deal Days
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Frequently Asked Questions

Yes - it is in stock at $579.99, $145.00 per terabyte, as of our last price check. Amazon sets the final price at checkout.

On this site, new means a factory-new unit sold as new, with no renewed, recertified, refurbished or pulled claim in the listing title. The warranty is whatever the listing states; check the serial with the maker after purchase.

The listing's current price divided by its stated capacity (4TB). It is a level for comparing drives today, not a measure of how prices have moved.

Use Case Scenarios

🗄️
OLTP Database Primary Storage
PostgreSQL, MySQL or Oracle requiring low latency and high IOPS.
✓ Excellent fit
NVMe delivers sub-200μs latency vs 5ms for HDD — a 25x improvement that directly reduces query response times. At 1 DWPD verify your daily write volume stays within endurance limits.
🤖
AI/ML Training & Inference
GPU server loading training datasets or serving inference at high throughput.
✓ Excellent fit
NVMe at 6,900MB/s eliminates storage bottlenecks when loading datasets to GPU memory. Consider multiple drives for larger datasets.
💾
Bulk Cold Data Archive
Storing large volumes of infrequently accessed data.
✗ Not ideal
At ~$145/TB, NVMe costs 10x more than enterprise HDD for cold data. Unless you need fast retrieval, HDDs or LTO tape are far more cost-effective.

Maintenance & Troubleshooting

Maintenance Checklist

On installCheck SMART baseline on arrival
Run smartctl -a /dev/sdX and record: Reallocated_Sector_Ct, Power_On_Hours, Spin_Retry_Count. Establishes baseline for future comparison.
MonthlyRun SMART short self-test
smartctl -t short /dev/sdX — takes 1-2 minutes, catches most developing issues. Schedule during off-peak.
QuarterlyRun SMART long self-test
smartctl -t long /dev/sdX — full surface scan, takes 2 hours for 4TB. Any test failure is grounds for immediate replacement.
QuarterlyCheck RAID array health
Verify no degraded drives. A degraded array with no hot spare is one failure from data loss. Check mdstat or controller UI.
AnnuallyVerify drive firmware version
Check WD support site for firmware updates. Some versions have known bugs affecting integrity.
Every 3-5 yearsPlan proactive replacement
Enterprise HDDs have higher failure rates after year 4-5. At 4TB per drive, budget for replacements before failures occur.

Troubleshooting Guide

Cause: PCIe slot not initialized, missing NVMe driver, BIOS not updated, or U.2 cable issue.
Fix: Check BIOS for NVMe in PCIe enumeration. Update server firmware. Reseat U.2 cable. Verify PCIe bifurcation if using adapter. Test in another slot.