LetLinkSo
PCIe 4.0 M.2 to U.2 Adapter, M.2 to SFF-8639 U.2 NVMe SSD Cable with 15Pin Power, Left Exit, 1.6ft (50cm)
*Price sourced from Amazon.com. Last updated 2026-05-12. Price and availability subject to change.
SpecPicks Verdict
SpecPicks classifies PCIe 4.0 M.2 to U.2 Adapter, M.2 to SFF-8639 U.2 NVMe SSD Cable with… as a category leader on buyer feedback in the storage adapters category, based on 14 verified Amazon reviews and our ranking model that weights rating × review-volume × price-fit. LetLinkSo's positioning sits comfortably above the category median. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.
Common buyer scenarios for storage adapters 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 Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.
Pros & Cons
Pros
- ✓ Highly rated — 4.9★ average across customer reviews
- ✓ Backed by LetLinkSo's warranty and support channels
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ Limited review volume so far — fewer data points on long-term reliability
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified
Key Features
- ENHANCED SYSTEM PERFORMANCE: This PCIe Gen4 M.2 to U.2 adapter makes it easy to install an U.2 PCIe NVMe SSD into your desktop PC or server, and connect to the drive through an available M.2 2280 M key compatible interface on your motherboard
- PCIE 4.0 SPEEDS: Experience cutting-edge performance with support for PCIe4.0, delivering theoretical speeds of up to 64 Gbps for your U.2 NVMe SSD
- EFFORTLESS INSTALLATION: This U.2 to M.2 adapter is ready to use out of the box, with no drivers or software required
- BACKWARD COMPATIBILITY: Future-proof yet flexible, this M.2 to SFF8639 adapter is designed for the latest technologies but also ensures compatibility with PCIe 3.0, 2.0, and 1.0 devices, providing users with the freedom to upgrade at their own pace
- IMPORTANT: This adapter requires connection to a SATA power cable to function. While the M.2 PCB of this PCIe 4.0 adapter shares the same design as the PCIe 5.0 version, it is still designed to operate at PCIe 4.0 speeds.
- DURABLE BUILD: Engineered with high-quality materials for long-lasting reliability, ensuring consistent performance through intensive use
Full Specifications
| Brand | LetLinkSo |
|---|---|
| Color | Black&Blue |
| Model | Left Exit |
| Cable Type | PCIe 4.0 \ SAS |
| Model Name | High-Speed M.2 to U.2 Cable |
| Part Number | LLS-CB-1MT1UT-02 |
| Compatibility | PC |
| DURABLE BUILD | Engineered with high-quality materials for long-lasting reliability, ensuring consistent performance through intensive use |
| Connector Type | M.2 M Key 2280, Straight Sff-8639 U.2 |
| Number of Pins | 22 |
| Outer Material | Nylon, Polybutylene Terephthalate(PBT), Polyvinyl Chloride (PVC) |
| Number of Items | 1 |
| PCIE 4.0 SPEEDS | Experience cutting-edge performance with support for PCIe4.0, delivering theoretical speeds of up to 64 Gbps for your U.2 NVMe SSD |
| Special Feature | Backward Compatibility, Custom OEM/ODM and Bulk Supply, Effortless Installation, Enhanced System Performance, PCIe 4.0 Speed |
Ready to buy?
PCIe 4.0 M.2 to U.2 Adapter, M.2 to SFF-8639 U.2 NVMe SSD Cable with 15Pin Power, Left Exit, 1.6ft (50cm) is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-05-12. Price and availability subject to change.
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