Overview

The Western Digital WD Green SN350 NVMe SSD 1TB (model WDS100T2G0C) is an entry-level internal solid-state drive designed to bring NVMe speed to everyday PCs. With sequential read speeds up to 2,400 MB/s and write speeds up to 1,850 MB/s, it offers a significant boost over traditional SATA SSDs. The M.2 2280 form factor fits into most modern motherboards and laptops that have an NVMe slot.
As part of the Green series, this drive focuses on low power consumption and quiet operation, making it a solid choice for boot drives and general storage. With no moving parts, it is resistant to shock and drops, helping protect your important data. Western Digital also provides the free SSD Dashboard software to monitor drive health, temperature, and free space.
In terms of pricing, the 1TB version typically costs around 20,000 yen, which is quite affordable in the NVMe market. It sits at the entry-to-mid tier, offering a practical balance of cost and performance for users upgrading from mechanical hard drives or SATA SSDs.

Compatibility Guide

The WD Green SN350 is an M.2 2280 NVMe SSD using the PCIe 3.0 x4 interface and NVM Express 1.4 protocol. It fits into any M.2 slot that supports PCIe 3.0 or newer, whether on a desktop motherboard or a laptop. However, if your system only has a SATA M.2 slot, the drive will not work because it requires NVMe support.
Before purchasing, verify your motherboard or laptop specifications to ensure the M.2 slot supports PCIe NVMe. The drive is single-sided, making it compatible with most thin laptops that require low-profile SSDs. It also features HMB (Host Memory Buffer) technology, which uses a small amount of system memory to improve performance without a dedicated DRAM cache.
For OS migration, Western Digital includes a free version of Acronis True Image for Western Digital, allowing you to clone your existing drive and move your operating system without reinstalling everything.

Product Info

The WD Green SN350 1TB was released in 2021 and remains widely available. It comes with a 5-year limited warranty and has a TBW (Total Bytes Written) rating of 200TB for the 1TB variant. Assuming a typical daily write of about 50GB, this translates to more than 10 years of endurance, though heavy users writing 1TB per day would exhaust it in under a year.
The drive uses Western Digital's own 3D TLC NAND flash and a proprietary controller. Without a DRAM cache, it relies on HMB to maintain responsiveness. Market positioning is clearly entry-level: it targets users who want the speed of NVMe without paying a premium. Compared to higher-end PCIe 4.0 drives, its sequential performance is modest, but for everyday tasks like browsing, office work, and media playback, the difference is imperceptible.

Best Use Cases

Users upgrading an older PC for daily use: If your computer boots slowly and applications take time to load, this SSD provides a dramatic improvement. With up to 4x the speed of SATA drives, Windows startup feels snappy. It's an affordable upgrade path for extending the life of aging hardware.
Gamers looking to reduce load times: Installing games on this drive will shorten scene loading. However, for the latest triple-A titles that utilize DirectStorage, a PCIe 4.0 SSD may offer better performance. If loading times are your priority, consider a higher-end model, but for most games, the SN350 delivers a noticeable improvement over HDDs.
Hobbyist media servers or secondary PCs: With 1TB of storage, it fits well as a main drive for a home server or a secondary PC used for streaming and light tasks. The low power draw and quiet operation are beneficial in always-on scenarios.
Budget-conscious builders: If you want NVMe speed on a tight budget, this is one of the most affordable options. It is not ideal for content creators who frequently write large files, because the write speeds and endurance are lower than prosumer drives.

Things to Consider

The write speeds are significantly lower than read speeds, and the TBW rating of 200TB is below average for 1TB drives. Heavy workloads involving constant large file transfers will cause performance drops after the write cache fills, since there is no DRAM. Users who do video editing or large backups should look at the WD Black SN770 (with DRAM) or similar models.
Competitors include the Crucial P3 and KIOXIA EXCERIA, both in a similar price range. Compare specs like sustained write speeds and warranty terms before deciding. Also, this is a PCIe 3.0 drive, so installing it in a PCIe 4.0 slot will not increase speed; it will simply run at PCIe 3.0 rates.
Thermals are generally manageable, but in tight spaces, such as thin laptops, adding a heatsink may be beneficial. Always check your system's M.2 slot orientation and available space. Also be aware that the Green series is not designed for RAID arrays or heavy server workloads; its endurance is not

Product Disclosure (Amazon)

  • Manufacturer: ウエスタンデジタル(Western Digital)
  • Seller: Amazon US
  • Fulfilled by: Amazon US
  • ASIN: B0CGY95ZZF
  • Note: This article covers a manufacturer-made product based on Amazon listing details.