
WD_Black SN770M 1TB M.2 2230 NVMeSSD - PCIe Gen 4.0, Speeds up to 5150 MB/s, for Handheld Gaming Devices and Compatible laptops, TLC 3D NAND, Great for Asus ROG Ally, Steam Deck, Microsoft Surface
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AI Verdict
This 1TB M.2 2230 NVMe SSD with 5150 MB/s read speeds is for upgrading storage in handheld gaming devices and compatible ultrathin laptops.
This 1TB M.2 2230 NVMe SSD is purpose-built for handheld gaming devices and specific ultrathin laptops, offering 5150 MB/s read speeds and 1TB capacity. It directly addresses the storage limitations of these compact systems.
If you need even more storage for your handheld, look for the 2TB version of this same drive, or other 2230 form factor SSDs with higher capacities.
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Pros
- Delivers sequential read speeds up to 5150 MB/s, significantly reducing game load times on handhelds.
- The M.2 2230 form factor fits directly into devices like the Steam Deck, Asus ROG Ally, and Microsoft Surface models.
- Offers 1TB of TLC 3D NAND storage, allowing for a larger game library on portable devices.
- Includes Microsoft DirectStorage Support, which can improve game loading performance on compatible Windows systems.
- Backed by a 5-year limited warranty, providing extended coverage.
Cons
- The 2230 form factor limits its use to specific compact devices, not standard desktop PCs or larger laptops.
- Real-world sequential write speeds were observed at 4413 MB/s in some tests, slightly below the advertised 4900 MB/s.
- Some users report the retail packaging is minimal, lacking detailed installation instructions.
Dimension Scores
With 5150 MB/s read and 4900 MB/s write, it's significantly faster than the stock drives in many handhelds and ultrathin laptops.
It uses TLC 3D NAND and has a 600 TBW endurance rating for the 1TB model, plus a 5-year warranty.
1TB is a substantial upgrade for handheld gaming devices, allowing for a large library of modern games.
Specifically designed for popular handhelds like the ROG Ally and Steam Deck, and M.2 2230 compatible laptops.
Best For
- Expanding storage on a Valve Steam Deck for more installed games.
- Upgrading the internal drive of an Asus ROG Ally for faster game installations.
- Increasing capacity in M.2 2230 compatible Microsoft Surface or Dell laptops.
Not Recommended For
- Desktop PC builds requiring a standard M.2 2280 form factor.
- Users who primarily need external storage solutions.
Watch Out For
- The 2230 form factor means it won't fit in most standard M.2 slots found in desktop motherboards or larger laptops, which typically use 2280.
- While advertised at 4900 MB/s write, some real-world benchmarks show sequential write speeds closer to 4413 MB/s.
- The product packaging might not include detailed installation guides, requiring users to look up instructions online.
Full Specifications
| ASIN | B0CHJXHVZM |
| Brand | Sandisk |
| Color | Black |
| Series | WD_BLACK SN770M NVMe SSD |
| Hard Drive | 1 TB Solid State Drive |
| Item Weight | 0.099 ounces |
| Manufacturer | Sandisk Technologies, Inc. |
| Special Feature | Portable |
| Flash Memory Size | 1 TB |
| Installation Type | Internal Hard Drive |
| Item model number | WDBDNH0010BBK-WRSN |
| Compatible Devices | Laptop |
| Product Dimensions | 1.18 x 0.86 x 0.09 inches |
| Hard Disk Interface | NVMe |
| Hard Drive Interface | NVMe |
| Hard Disk Description | Solid State Drive |
| Hard Disk Form Factor | 2.5 Inches |
| Item Dimensions LxWxH | 1.18 x 0.86 x 0.09 inches |
| Connectivity Technology | M.2 2230 |
| Digital Storage Capacity | 1 TB |
What Buyers Say
Many users upgrading their handheld gaming devices found this SSD to be a transformative experience, specifically noting the ease of installation and the immediate impact on game loading times. The 1TB capacity is frequently highlighted as a key benefit, allowing for a much larger game library without constant management. While the advertised speeds are high, some real-world tests show slightly lower write performance, but this doesn't seem to detract from the perceived speed in gaming scenarios.
“Dude, this thing made my ROG Ally actually usable for more than like 3 games, installs are so fast now, totally worth the hassle of opening it up!”
Common Praise
- Game installations and level loads are noticeably quicker on handheld devices.
- The 1TB capacity eliminates the need to constantly delete games on Steam Deck or ROG Ally.
- Installation process is straightforward for compatible devices, often just a simple swap.
- The drive runs without issues and integrates well with the handhelds' operating systems.
Common Complaints
- The retail packaging is basic and doesn't include detailed installation instructions.
- Some benchmarks show sequential write speeds slightly below the 4900 MB/s specification.
- The M.2 2230 form factor limits its use to a very specific set of devices.
Ownership Tips
- After a few weeks, the speed difference from the stock drive is consistently apparent in game loading.
- The drive maintains its performance even after filling it with multiple large game titles.
- No noticeable thermal issues reported in handheld devices, despite the speed increase.
- Using the Western Digital Dashboard software (Windows only) helps monitor drive health, but isn't strictly necessary for basic function.
Frequently Asked Questions
What devices is this SSD compatible with?
It's compatible with handheld gaming devices like the Asus ROG Ally and Valve Steam Deck, and M.2 2230 compatible laptops such as many Microsoft Surface and Dell models.
What are the read and write speeds?
The 1TB model offers sequential read speeds up to 5150 MB/s and sequential write speeds up to 4900 MB/s.
Does it come with a warranty?
Yes, it includes a 5-year limited warranty.
Is this SSD easy to install?
Users report that installation is straightforward for compatible devices, often just requiring swapping out the old drive and installing the OS.
Can I use this in a desktop PC?
No, its M.2 2230 form factor is too short for most desktop M.2 slots, which typically require 2280 drives.
Buying Guide
When you're looking at an SSD like this, especially for handhelds, you're mostly concerned with two things: how much stuff you can put on it, and how fast that stuff loads. This drive is all about getting more games onto your device and making them load faster. The 'M.2 2230' part is super important because it tells you the physical size, and if your device doesn't use that size, it won't fit.
Capacity (1TB)
This is how much data the drive can hold. Think of it like the size of your backpack; a 1TB backpack lets you carry way more games than a 256GB one, so you don't have to constantly decide what to leave behind.
Interface (PCIe Gen 4.0 NVMe)
This is the connection type and speed. Imagine it as the highway your data travels on. PCIe Gen 4.0 is a super-fast, multi-lane highway compared to older Gen 3.0 roads, meaning games load up way quicker because data moves so much faster.
Form Factor (M.2 2230)
This is the physical size and shape of the SSD. It's like buying a specific size of battery for your remote; if you need a AAA, a AA won't fit. The '2230' means it's 22mm wide and 30mm long, which is tiny and specifically for compact devices.
Alternatives
If this drive doesn't fit your device, you'll need to search for an M.2 NVMe SSD with a different form factor, such as 2242, 2260, or 2280, depending on what your specific laptop or desktop supports.



