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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 17 Showing 321-340 of 515 reviews

  • Works perfectly!

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

    Fastest SSD I’ve ever owned. I ended up buying 4 and forgoing SATA SSDs altogether. It’s great!

    I would recommend this to a friend

  • Quick, Big, Exactly what I needed.

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

    Quick, Big, Exactly what I needed. I run most heavy programs along with my system on this drive and it's super fast with no issues.

    I would recommend this to a friend

  • Everything I needed

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

    I have previously purchased the 2TB WD-Black internal SSD and when it was time for a memory upgrade I went right back to Western Digital.

    I would recommend this to a friend

  • Small drive

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

    Drive was installed by Best Buy and works great in my computer. Added a lot of additional storage for computer

    I would recommend this to a friend

  • Bits n Bytes

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

    Easy install and a decent amount ir storage space from a trustworthy brand.

    I would recommend this to a friend

  • Quality brand

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

    I went withWestern Digital they have always been my go-to for storage. U pay for rhe good quality product

    I would recommend this to a friend

  • Great hard drive

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

    This is a fast dard drive. I have not had any problems with it. Everything loads fast from it

    I would recommend this to a friend

  • Great for gaming

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

    Fast and no hastle instalation, can fit anything I want and it reads stupid fast.

    I would recommend this to a friend

  • Fast!

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

    Works as intended! Fast and easy to use. Definitely an upgrade from mechanical HD or data SSD!

    I would recommend this to a friend

  • Excellent speed

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

    Easy to install, the software doesn’t seem to be very necessary to do anything. 

    I would recommend this to a friend

  • PlayStation extra storage

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

    I bought this for extra storage for my PlayStation and I’m very happy with it. It’s very easy to install.

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

    PS5 Storage

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

    Really easy to install along with the heatsink from the store. Great to increase the storage on my PS5

    I would recommend this to a friend

  • Great SSD for ps5

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

    I have been using this in my ps5 and it has worked flawlessly I highly recommend to anyone needing more space.

    I would recommend this to a friend

  • Buy this now!!!

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

    Great item. Worth the price. Super fast and overall just a great item.

    I would recommend this to a friend

  • All the space

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

    Finally have all the space for a while. Obtained this fantasyis ssd at a great price. Has lived up to the reviews so far

    I would recommend this to a friend

  • Great option for handheld devices.

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

    Works great! Both the write and read speeds are good enough. I use it on my hand held gaming device - Ayaneo geek 1S

    I would recommend this to a friend

  • Cant go wrong with wd black !

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

    Works great have all my m.2 ssd wd black. All 3 slots on my kother board filled !

    I would recommend this to a friend

  • PS5 use

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

    Bought it for PS5. Works like a charm. Very fast drive.

    I would recommend this to a friend

  • If you're thinking about getting an m2... do it!

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

    Absolutely fantastic product! Super fast speeds, well packaged, and honestly just an amazing piece of tech for any PC!

    I would recommend this to a friend

  • Great Hard-drive

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

    Works just like its supposed to!! I would buy again!

    I would recommend this to a friend
Page 17, Showing 321-340 of 515 reviews
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