Home SSDs WD BLACK SN850X 4TB Internal SSD PCIe Gen 4 x4 NVMe

WD - BLACK SN850X 4TB Internal SSD PCIe Gen 4 x4 NVMe

Price range: $599.99–1199.99
Brand: WD
Category: Ssd
A WD 4 TB PCIe Gen 4 x4 NVMe M.2 2280 SSD with up to 7,300 MB/s read, 6,600 MB/s write · 2400 TBW · TLC.
PQS: 100 (computed 2026-03-14 07:04:54.959393+00:00)
GTIN-14: 00619659193454
WD - BLACK SN850X 4TB Internal SSD PCIe Gen 4 x4 NVMe

Key specs

A human-friendly subset of specs (non-null)
Capacity (GB)
4000
Form factor
M.2 2280
Interface
PCIe Gen 4 x4
NAND type
TLC
Read speed
7300 megabytes per second
Write speed
6600 megabytes per second
Endurance (TBW)
2400.0

How this Ssd compares vs. 328 ssds

Percentile rank for each spec — higher means this product outperforms more of its peers.
Capacity 4000.0GB
77% Above avg

Spec Profile Radar

Visual snapshot — outer edge = 100th percentile (best in class)

Offers

Retailer SKU Price Stock Offer Last seen
B&H WEWDBB9G0040 1199.99 USD In stock View offer → 2026-03-14 02:34:25.838815+00:00
Best Buy 6512129 599.99 USD In stock View offer → 2026-03-14 02:44:09.810755+00:00
Newegg 9SIA0ZXKT00088 769.61 USD In stock View offer → 2026-03-13 02:19:37.697574+00:00

Recent price history (50)

Retailer Price Stock Seen at
bestbuy 599.99 USD In stock 2026-03-14 02:44:09.810755+00:00
bh 1199.99 USD In stock 2026-03-14 02:34:25.838815+00:00
bestbuy 599.99 USD In stock 2026-03-13 02:53:48.302117+00:00
bh 1199.99 USD In stock 2026-03-13 02:43:11.319639+00:00
newegg 769.61 USD In stock 2026-03-13 02:19:37.697574+00:00
bestbuy 599.99 USD In stock 2026-03-12 02:44:49.311417+00:00
bh 1199.99 USD In stock 2026-03-12 02:38:22.376808+00:00
newegg 769.61 USD In stock 2026-03-12 02:23:35.737048+00:00
bestbuy 599.99 USD In stock 2026-03-11 02:43:20.663480+00:00
bh 1199.99 USD In stock 2026-03-11 02:41:10.625664+00:00
newegg 769.61 USD In stock 2026-03-11 02:13:17.957802+00:00
bestbuy 1119.99 USD In stock 2026-03-10 02:53:14.939764+00:00
bh 1199.99 USD In stock 2026-03-10 02:32:03.486877+00:00
newegg 769.61 USD In stock 2026-03-10 02:20:48.720102+00:00
bestbuy 1119.99 USD In stock 2026-03-09 02:51:52.315257+00:00
bh 1199.99 USD In stock 2026-03-09 02:39:19.202615+00:00
newegg 769.56 USD In stock 2026-03-09 02:23:08.293153+00:00
newegg 769.56 USD In stock 2026-03-08 05:46:21.136818+00:00
bh 1199.99 USD In stock 2026-03-08 05:45:51.464506+00:00
bh 1199.99 USD In stock 2026-03-06 09:04:20.768129+00:00
newegg 769.56 USD In stock 2026-03-06 08:40:34.481932+00:00
bestbuy 1119.99 USD In stock 2026-03-06 06:09:33.551299+00:00
bh 1199.99 USD Out of stock 2026-03-03 02:39:30.182321+00:00
newegg 769.56 USD Out of stock 2026-03-03 02:19:03.643434+00:00
bestbuy 589.99 USD In stock 2026-03-03 01:59:56.460703+00:00
newegg 769.56 USD Out of stock 2026-03-02 10:42:34.283913+00:00
bh 1119.99 USD Out of stock 2026-03-02 10:41:06.653023+00:00
bestbuy 589.99 USD In stock 2026-03-02 08:03:11.146988+00:00
bh 1119.99 USD Out of stock 2026-03-02 06:25:29.391596+00:00

Full specs

Show full spec table
Capacity (GB)4000
Form factorM.2 2280
InterfacePCIe Gen 4 x4
NAND typeTLC
Read speed7300 megabytes per second
Write speed6600 megabytes per second
Endurance (TBW)2400.0
Reconciled at2026-03-06 10:56:32.254648+00:00
Canonical JSON (expand)
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Related products

Simple similarity over extracted specs (publish_set only)
Debug data (expand)
Raw title WD - BLACK SN850X 4TB Internal SSD PCIe Gen 4 x4 NVMe
Raw brandWD
Raw categoryBest Buy > Computers & Tablets > Computer Accessories & Peripherals > Hard Drives, SSD & Storage > Internal SSDs
Canonical highlights (non-null)
core.title WD - BLACK SN850X 4TB Internal SSD PCIe Gen 4 x4 NVMe
core.seo_title WD WDBB9G0040BNC-WRSN - 4TB SSD
brand WD
model WDBB9G0040BNC-WRSN
gtin14 00619659193454
images[0] https://pisces.bbystatic.com/prescaled/500/500/image2/BestBuy_US/images/products/284eb65b-7099-4ccd-ba90-1cd5df5a2f47.jpg
storage.interface PCIe Gen 4 x4
storage.nand_type TLC
storage.read_speed 7300 megabytes per second
storage.capacity_gb 4000
storage.form_factor M.2 2280
storage.write_speed 6600 megabytes per second
storage.endurance_tbw 2400.0
category ssd
physical.width_in 0.87
physical.height_in 0.09
physical.weight_kg 0.01
physical.dimensions_in 0.09 x 0.87 x ? in
warranty.labor 5 Years
warranty.parts 5 Years
schema_version 1
BestBuy raw specs (pretty)
Expand BestBuy raw JSON
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Newegg raw specs
raw_specs_text (pretty) — expand
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