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Western Digital SSD M.2 WD Red SN700 4TB

4TB M.2 2280 NVMe PCIe 3.0 x4 SSD for NAS

529€95
Recycling charge of 0€05
4 x 135€73
of which 12€97 fees
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Overview

WD Red SN700: M.2 NVMe SSD for NAS

Take on extreme workloads in NAS environments with the WD Red SN700 M.2 NVMe SSD for fast caching. The system's responsiveness and disk I/O performance are perfect for multi-user, multi-tasking applications, allowing you to master your SMB's most ambitious projects, from virtualization to collaborative publishing to intensive database storage with efficient caching.

Fast, fluid access

  • Sequential read: 3400 MB/s max.
  • Sequential write: max. 3100 MB/s
  • 4K random read: 450,000 IOPS
  • 4K random write: 520,000 IOPS
  • Endurance: 5100 ToW
  • MTTF: up to 1.75 million hours
Specifications
Select your criteria

General information

Product name

Western Digital SSD M.2 WD Red SN700 4TB

Brand

Western Digital

Model

WDS400T1R0C

Main characteristics

Interface with the computer

M.2 - PCI-E 3.0 x4

Hard drive format

M.2

M.2 format

M.2 2280

Heatsink

No

Cooling type

None

Capacity

4 TB

Flash memory type

TLC (Triple-Level Cell)

NVMe

Yes

PS5-compatible

No

Performance

Read speed

3400 MB/s

Write speed

3100 MB/s

IOPS Read

550000

IOPS in writing

520000

Endurance

5100

TRIM compatible

Yes

Physical characteristics

Width

22 mm

Height

2.38 mm

Depth

80 mm

Weight

7.5 g

Warranties

Commercial warranty

Legal warranty

Safety Information

Responsible person

Western Digital UK Limited

Postal address

Connaught House, 3rd Floor, 255 High Street Guildford, Surrey GU1 3BS, GB, United Kingdom

Electronic Address

Product referenced on 14 Oct 2021

Customer reviews
  • 83%
    5 reviews
  • 0%
  • 0%
  • 0%
  • 17%
    1 review
  • by AmandineL
    Posted on 12 Jul 2025
    Bought on 8 Jun 2025 from LDLC
    Number of reviews: 19 Average rating: 10

    Perfect

    Reliable product that I ordered in 2nd copy in order to mount a RAID 1 in Nas Asustor. Perfectly recognised and installed in RAID 1! LDLC are always top notch when it comes to processing and tracking shipments, and their efficient after-sales service!

    Model: Western Digital SSD M.2 WD Red SN700 500GB
    Review automatically translated
  • by AmandineL
    Posted on 13 Jun 2025
    Bought on 7 Jun 2024 from LDLC
    Number of reviews: 19 Average rating: 10

    Perfect in Asustor

    Works perfectly in an asustor NAS server, recognised and used in RAID 1. LDLC at the top for tracking and shipping

    Model: Western Digital SSD M.2 WD Red SN700 500GB
    Review automatically translated
  • by piRGoif
    Posted on 31 Mar 2025
    Bought on 20 Mar 2025 from LDLC
    Number of reviews: 9 Average rating: 9

    Straightforward acceleration for my Synology NAS!

    Purchased to speed up my Synology NAS, on which I was having problems with email and Synology Drive synchronisation. After 1 week the results are very clear! All operations became almost immediate, a joy!

    In the past, I had recycled a 2.5" desktop ssd for this purpose, and the messaging had been much improved, but not so much the Drive synchronisation. Well, I only had one drive and not two, so I only had a read cache and not a read+write cache like now.
    This desktop SSD burnt out quite quickly... I'm confident that these NAS models will last much longer, just like the RED range of HDDs from the same brand that have been in my NAS for years.

    Model: Western Digital SSD M.2 WD Red SN700 500GB
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  • by Jean-philippeG
    Posted on 13 Aug 2024
    Bought on 4 Jul 2024 from LDLC
    Number of reviews: 2 Average rating: 10

    In line with expectations

    Purchased for its longevity as a cache in a Synology NAS, corresponds perfectly to requirements (1000 TBW).
    Impeccable packaging and top delivery time despite change of delivery type; top LDLC support.

    Model: Western Digital SSD M.2 WD Red SN700 500GB
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  • by ThierryP
    Posted on 3 Aug 2024
    Bought on 12 Mar 2024 from LDLC
    Number of reviews: 2 Average rating: 6

    WD SSD M.2 WD Red SN700 2Tb

    Put in an ASUS 2023 laptop to replace the basic 512GB. Does the job. Fast, doesn't heat up too much. Reliable despite daily use for 6 months and non-stop use for 3 months, using a fairly resource-hungry application.

    Model: Western Digital SSD M.2 WD Red SN700 2TB
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