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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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Rating by feature

  • 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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There aren't enough negative mentions yet.
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 8 Showing 141-160 of 515 reviews

  • Works great

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

    Works great. Just what I was looking for, for my PS5.

    I would recommend this to a friend

  • Great boost in capacity

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

    Another as advertised -- wicked fast 4TB drive for upgrading my new laptop. Runs a bit warmer but nothing the laptop cant handle.

    I would recommend this to a friend

  • Works as advertised

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    Posted . Owned for 4 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Works as advertised. It's a high-speed 4TB NVMe drive. Quite pricey, even when I bought it on sale, but it was worth it to me.

    I would recommend this to a friend
  • Pros mentioned:
    Installation

    glad I got one... but at what cost??

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

    the read and write speeds on this drive are great, it installed easy. and I've had no issues with it yet... that being said... make sure you watch the prices, the market fluctuation is crazy, i've seen it as high as 400 and as low as 200 all between june 2023 to november 2023 keep an eye on samsung 990 pro and the crucial t500. they all seem to be competing for the same spot

    I would recommend this to a friend

  • I can’t wait for the price to go down

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

    They do what they promised it would do it just over price that’s all

    I would recommend this to a friend

  • Great card!

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

    Great speed, compatibility Had to find a heatsink on Amazon. Don’t understand why Best Buy doesn’t sell any since they sell many SDDs for ps5

    I would recommend this to a friend

  • Great ssd for PC builds

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    Posted . Owned for 5 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Amazing and fast ssd. Is usually cheaper and offers similar performance to the 990 pro from samsung. No issues with defects, lower than advertised speeds, or firmware issues.

    I would recommend this to a friend

  • Good ssd for the price.

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

    This thing rocks for the price I paid. Being a pc gamer it always seems like I'm trying to find more drive space and this gave me what I needed.

    I would recommend this to a friend

  • Great Storage Device

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    No complaints at all. Works great! I would highly recommend as an alternate to the Samsung 990.

    I would recommend this to a friend

  • Plenty of space

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

    You can never have enough space and this was just right. So much faster than standard ssd drives. Easy to install and makes a great addition to pc.

    I would recommend this to a friend

  • The best

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Fast, very fast. What else needs to be said? The price, well with what's going on in the White House with the tariff wars, the price could be better. Zooom zoooom zooooom.

    I would recommend this to a friend

  • More Storage

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Exactly what was needed. Works As Described. Still in use a year later.

    I would recommend this to a friend

  • My new SSD

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

    I actually installed it on my laptop without issue and works perfectly fine.

    I would recommend this to a friend
  • Pros mentioned:
    Installation

    Very fast

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

    Very fast and easy to install. Also liked that it was detected right away by my MB.

    I would recommend this to a friend

  • Super snazzy top of the line SSD.

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

    This is one insanely fast SSD and four terabytes in my laptop kind of crazy extracting gigabyte files takes seconds.

    I would recommend this to a friend
  • Pros mentioned:
    Installation

    Great for the gamer and photo/video editing

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

    Great fast drives! I bought two, one for gaming and the other for my photo/video work. Easy to install and easy to setup.

    I would recommend this to a friend

  • Darn Good!

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

    Works great, was easy to install. Used it to replace an older Crucial 1tb drive. Significant in speeds! temps stay good as well.

    I would recommend this to a friend

  • 4GB of fast storage for my new laptop

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

    4GB of fast storage for my new laptop. Works well and doesn't seem to add any heat to my laptop.

    I would recommend this to a friend
  • Pros mentioned:
    Installation

    FAST SSD

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

    This thing is really fast and I have not had any slow down or any issues while transferring files. Easy install.

    I would recommend this to a friend

  • More than enough storage for an M.2

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

    With limited m.2 slots on motherboard, get this m.2 was a great purchase. Especially if you want to keep your great games on a fast ssd

    I would recommend this to a friend
Page 8, Showing 141-160 of 515 reviews
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