Samsung 512GB SSD M.2 2230 30mm PM991a NVMe PCIe Gen3 x4 Solid State Drive
Bottom line: The Samsung 512GB SSD M.2 2230 30mm PM991a NVMe PCIe Gen3 x4 MZ9LQ512HBLU is a specs-and-price decision rather than a crowd-consensus one in the ssds & storage category, priced around $149.00 on Amazon as of 2026-10-06. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.
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*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.
Pros & Cons
Pros
- ✓ Sequential read/write up to (MB/s): 3100/1800
Cons
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated
Manufacturer description
Samsung 512GB SSD M.2 2230 30mm PM991a NVMe PCIe Gen3 x4 MZ9LQ512HBLU Solid State Drive for Surface Pro Steam Deck Dell HP Lenovo Ultrabook Tablet
SpecPicks Verdict
SpecPicks scored Samsung 512GB SSD M.2 2230 30mm PM991a NVMe PCIe Gen3 x4… 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): 3100/1800
- Random read/write up to (IOPS): 350K/320K
- Form factor, Interface: M.2 2230 (22mm x 30mm)
- Interface: NVMe PCIe Gen3 x4
- Compatibility: Surface, Surface Pro, Steam Deck and other systems with M.2 2230 slot
Full Specifications
| Brand | Samsung |
|---|---|
| Color | Black |
| Interface | NVMe PCIe Gen3 x4 |
| Model Name | Samsung PM991a Series |
| Read Speed | 3100 Megabytes Per Second |
| Form Factor | ultrabook |
| Media Speed | 1800 megabits_per_second |
| Model Number | MZ9LQ512HBLU |
| Compatibility | Surface, Surface Pro, Steam Deck and other systems with M.2 2230 slot |
| Built-In Media | SSD |
| Item Type Name | SSD Solid State Drive |
| Hard-Drive Size | 512 GB |
| Mfr Part Number | MZ9LQ512HBLU |
| Number of Items | 1 |
| Special Feature | Portable |
| Installation Type | Internal Hard Drive |
| Compatible Devices | Tablet |
| Data Transfer Rate | 3100 Megabytes Per Second |
| Enclosure Material | Nand Flash |
| Additional Features | Portable |
| Full listing title | Samsung 512GB SSD M.2 2230 30mm PM991a NVMe PCIe Gen3 x4 MZ9LQ512HBLU Solid State Drive for Surface Pro Steam Deck Dell HP Lenovo Ultrabook Tablet |
Ready to buy?
Samsung 512GB SSD M.2 2230 30mm PM991a NVMe PCIe Gen3 x4 MZ9LQ512HBLU Solid State Drive for Surface Pro Steam Deck Dell HP Lenovo 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.
*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.
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