SAMSUNG 1TB SSD M.2 2230 30mm PM991a NVMe PCIe Gen3 x4 Solid State Drive
Bottom line: The SAMSUNG 1TB SSD M.2 2230 30mm PM991a NVMe PCIe Gen3 x4 MZ9LQ1T0HBLB: 3,100 MB/s sequential reads over PCIe Gen3 x4, full bandwidth for a 2230 slot; main trade-off: PCIe Gen3 x4 only, so Gen4 2230 drives post far higher sequential reads.
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Pros & Cons
Pros
- ✓ 3,100 MB/s sequential reads over PCIe Gen3 x4, full bandwidth for a 2230 slot
- ✓ 380K/330K random read/write IOPS for fast game patching and shader loads
- ✓ 1TB capacity in the 30mm 2230 footprint Steam Deck and Surface Pro require
- ✓ Samsung PM991a is the same OEM drive shipped inside many Dell, HP and Lenovo laptops
Cons
- ✗ PCIe Gen3 x4 only, so Gen4 2230 drives post far higher sequential reads
- ✗ 2,000 MB/s write trails the 3,100 MB/s read on large file transfers
- ✗ Listing conflicts: title says M.2 2230 30mm, spec bullet says M.2 2280
- ✗ OEM part MZ9LQ1T0HBLB with no warranty terms stated; check the product listing
Manufacturer description
SAMSUNG 1TB SSD M.2 2230 30mm PM991a NVMe PCIe Gen3 x4 MZ9LQ1T0HBLB Solid State Drive for Surface Pro Steam Deck Dell HP Lenovo Laptop Ultrabook Tablet
SpecPicks Verdict
SpecPicks scored SAMSUNG 1TB SSD M.2 2230 30mm PM991a NVMe PCIe Gen3 x4 MZ9LQ1T0HBLB… using a rating × review-volume × price-fit model applied to published specs and reviews across the ssds & storage category. Compare with similarly-priced alternatives in the ssds & storage category before committing. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for ssds & storage of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Key Features
- Sequential read/write up to (MB/s): 3100/2000
- Random read/write up to (IOPS): 380K/330K
- Form factor, Interface: M.2 2280, NVMe PCIe Gen3 x4
- Compatibility: Steam Deck, Surface Tablet and other systems with M.2 2230 NVMe PCIe slot
Full Specifications
| Brand | Samsung |
|---|---|
| Color | Black |
| Model Name | Samsung PM991a Series |
| Read Speed | 3100 megabytes_per_second |
| Unit Count | 1 Count |
| Form Factor | M.2 2230 |
| Media Speed | 3100 megabits_per_second |
| Model Number | MZ9LQ1T0HBLB |
| Compatibility | Steam Deck, Surface Tablet and other systems with M.2 2230 NVMe PCIe slot |
| Built-In Media | SSD |
| Hard-Drive Size | 1 TB |
| Mfr Part Number | MZ9LQ1T0HBLB |
| Number of Items | 1 |
| Special Feature | Portable |
| Installation Type | Internal Hard Drive |
| Compatible Devices | Surface Tablet, Steam Deck and other devices with M.2 2230 slot |
| Data Transfer Rate | 3100 megabytes_per_second |
| Enclosure Material | Nand Flash |
| Additional Features | Portable |
| Hard Disk Interface | PCIE x 4 |
| Full listing title | SAMSUNG 1TB SSD M.2 2230 30mm PM991a NVMe PCIe Gen3 x4 MZ9LQ1T0HBLB Solid State Drive for Surface Pro Steam Deck Dell HP Lenovo Laptop Ultrabook Tablet |
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SAMSUNG 1TB SSD M.2 2230 30mm PM991a NVMe PCIe Gen3 x4 MZ9LQ1T0HBLB Solid State Drive for Surface Pro Steam Deck Dell HP Lenovo Laptop Ultrabook Tablet is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
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