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Customer Ratings & Reviews

  • WD_BLACK™ SN850X NVMe™ SSD POWERED BY SANDISK™
  • WD_BLACK™ SN850X NVMe™ SSD WD_BLACK SN850X 4 TB POWERED BY SANDISK™
  • WD_BLACK™ SN850X 4TB NVMe™ SSD WD_BLACK SN850X POWERED BY SANDISK™
  • WD_BLACK™ SN850X NVMe™ SSD WD_BLACK™ SN850X POWERED BY SANDISK
  • M2A_CP 8O PCIEX16 :: CECC TCN 948 M E EAC ASSEM: a : UK D33006 CE FC Pb 10 CA RoHS SN850X NVMe mE SSD WD_BLACK WD_BLACKT SN850X IRO 140 11 21 PCIEX1 POWERED BY SANDISK REV:1.0 138 - SPDIF PCIEX1 PCIEX1 4 PCIEX4 BEPEEMEECES G S 60 . USK ad SB M20 M/BIOS 9 ASE 3 246 2 4 - AT TF LAS CEM SATA3 PON Th 1e + CR2032 RB r CLR_CMOS RST SW
  • 269k PCIEX16 5 ap M o M2A PCIEX1 3 PCIEXI PCIEX4 80 Pb 10 UK CA D33006 RoHS CE WD_BLACK SN850X NVMe™ SSD WD_BLACK SN850X PCIEA O POWERED BY SANDISK 19SJB E SB VE M2P P8 : 195 B
  • SN850X overview video video 0 minutes 48 seconds

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

Model:
WDBB9G0040BNC-WRSN
SKU:
6512129
Highly rated by customers for:
$599.99
Save $1,125
The comparable value is $1,724.99

Customer reviews

Rating 4.9 out of 5 stars with 515 reviews

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  • Value

    Rating 4.7 out of 5 stars

  • Quality

    Rating 4.9 out of 5 stars

  • Ease of Use

    Rating 4.9 out of 5 stars

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98%would recommend to a friend

Customers are saying

Customers commend the BLACK SN850X 4TB Internal SSD for its speed, ample storage, and great performance. Users also appreciate its ease of use and installation, considering it a perfect SSD M.2 hard drive with wide-ranging compatibility. Some customers noted the absence of a heat sink as a potential drawback. Overall, many find it to be a great product for the price.

This summary was generated by AI based on customer reviews.

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
Page 15 Showing 281-300 of 515 reviews

  • No regrets

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    Posted . Owned for 3 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    The performance has been exactly as advertised and has stayed fairly cool with a passive heat sink from my motherboard. I will likely be buying another for my second m2 slot as well.

    I would recommend this to a friend

  • Great for PS5

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    Posted . Owned for 7 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I put it in my PS5 for extra storage, it works amazing!

    I would recommend this to a friend

  • Good drive very fast

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    The drive works well, it’s fast and so far I’ve had no issues

    I would recommend this to a friend

  • M.2 will last for a long time!

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    Posted . Owned for less than 1 week when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Blazing fast! This is probably the best deal I got for 4TB. Thank you bestbuy

    I would recommend this to a friend

  • good

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    So fa so good. I used it with the enclosure as the external hard drive.

    I would recommend this to a friend

  • Plenty of fast storage for the ps5

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    Posted . Owned for 2 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    4tb no more deleting games and fast read/write speeds

    I would recommend this to a friend

  • Super fast and reliable.

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Better than I expected. Very happy with the WD BlackSN850X.

    I would recommend this to a friend

  • SSD purchase

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    Posted . Owned for 2 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great product for the price. Would recommend to my friends

    I would recommend this to a friend

  • Great for PS5

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Absolutely what I needed, slapped a heatsink on it and now the PS5 Pro is Happy

    I would recommend this to a friend

  • No issues other than missing M.2 screw

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    Posted . Owned for 2 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Got it on sale and have had no issues with the SSD itself. The only issue I had was that it didn't come with an M.2 screw to securely mount the card onto the M.2 standoff in my motherboard- so if you're planning on buying this, get a cheap little M.2 screw (and an M.2 standoff if your motherboard is missing that) or a heatsink for the SSD that you know will mount onto the M.2 standoff.

    I would recommend this to a friend

  • Secondary SSD to my 980 Pro

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    Posted . Owned for 1 week when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I placed it in my second M.2 slot and it works perfectly fine. No issues whatsoever. I can finally install more games without worrying too much about space! Would recommend!

    I would recommend this to a friend

  • Much better compatibility than a 990 Pro!

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    Posted . Owned for 2 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    The SN770 & SN850X series SSD's from WD will work out of the box on a much greater variety of systems without firmware updates or other workarounds.

    I would recommend this to a friend

  • Good quality

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    Posted . Owned for 1 year when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Perfect upgrade, excellent quality and easy to install made a big difference in use and glad I picked this up.

    I would recommend this to a friend

  • Great

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    Posted . Owned for 2 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great product. Easy to install and configure. Salesman was incredible.

    I would recommend this to a friend

  • Quality and performance

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    The SN850X line are really the best, most reliable gen 4 NVME drives you can buy. Western Digital did their homework on this design.

    I would recommend this to a friend

  • More sad nvme

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Perfect upgrade for my asus gaming laptop can store all my games.

    I would recommend this to a friend

  • Great performance

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    Posted . Owned for 6 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    When I needed more storage for my Steam library, this stick fit the bill. M.2 prices continue to fall, definitely worth the upgrade if your machine has a slot.

    I would recommend this to a friend

  • Amazing drive

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    Posted . Owned for 11 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Its great for a main storage/photo drive. It does a great job and is fast in download and transfers

    I would recommend this to a friend

  • Would buy again

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    Posted . Owned for 6 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Very easy install and worked immediately, no issues.

    I would recommend this to a friend

  • Performance is top notch, way faster than SATA

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Read/write performance is top notch. A little bit cheaper than similar drives due to no heat sink. Most motherboards come with heatsinks with m.2 drives so is usually a non issue.

    I would recommend this to a friend
Page 15, Showing 281-300 of 515 reviews
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