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Black open-frame PCIe 4.0 adapter with M.2 slot and U.2 SFF-8639 connector

LetLinkSo

LetLinkSo PCIe 4.0 U.2 to M.2 Adapter SFF-8639

SKU CH-7BHS-AFCYC

Converts an M.2 NVMe SSD to a U.2 SFF-8639 interface using PCIe 4.0 for server and workstation expansion

  • First connectorNVMe M.2(Key-M) SSD (2230\2242\2260\2280) slot
  • Second connectorU.2 SFF-8639 interface
  • Connector genderFemale to Male
  • Connector typeStraight
  • Units per package1
  • Product colorBlack

PCIe Gen 4.0

  • PCIe 4.0 delivers 64 Gbps bandwidth for fast NVMe storage
  • Adapter connects M.2 2230 2242 2260 2280 SSDs to U.2 SFF-8639 bays
  • Works with PCIe Gen4 and earlier generations for broad system support
  • Driver-free installation works on Windows macOS and Linux immediately
  • Open-frame design keeps SSD cool during heavy workloads

What This Adapter Does

This LetLinkSo PCIe 4.0 U.2 to M.2 adapter connects an NVMe M.2 SSD to a U.2 SFF-8639 bay. It supports M.2 form factors 2230, 2242, 2260 and 2280 so you can use common M.2 drives in servers, workstations or NAS units that only offer U.2 slots.

Who It Suits And Who It Does Not

It suits builders who have empty U.2 bays and want to install existing M.2 NVMe SSDs without buying expensive U.2 drives. It is not for systems that lack a U.2 SFF-8639 interface or for users who need to connect more than one M.2 device per adapter.

The Deciding Specification

The adapter runs at PCIe 4.0 with a 16 GT/s per lane rate across four lanes for 64 Gbps total bandwidth. This speed matches the SSD and host capabilities so the drive performs at its rated throughput.

How it compares

Measured against everything we stock in SATA, IDE & M.2 Drive Adapters, at today’s prices. Recalculated every night.

Price $20.99
Cheaper than about 57% of the 1,721 comparable items (median $22.99).

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Specifications

Product
Brand nameLetLinkSo
Product lineLLS-CD-1UT1MT-02
Model nameLLS-CD-1UT1MT-02
Part numberLLS-CD-1UT1MT-02
Product colorBlack
Ports & slots
First connectorNVMe M.2(Key-M) SSD (2230\2242\2260\2280) slot
Second connectorU.2 SFF-8639 interface
Connector genderFemale to Male
Connector typeStraight
Size & build
Product dimensions20'
Product weight3 oz
In the box
Units per package1
In the boxLetLinkSo PCIe 4.0 U.2 SFF-8639 to M2 NVMe SSD Card x 1

Other versions of this model

1 more in the same range

Questions about this item

Which M.2 NVMe SSD sizes does the LLS-CD-1UT1MT-02 adapter accept?

The adapter fits 2230, 2242, 2260 and 2280 length M.2 NVMe SSDs, letting you use the drive you already own.

What real-world throughput does the PCIe 4.0 x4 link deliver through this adapter?

The PCIe 4.0 x4 connection provides up to 64 Gbps total bandwidth, so the SSD runs at its full Gen4 speed.

How does the SFF-8639 U.2 interface affect performance and compatibility?

The SFF-8639 connector carries four PCIe 4.0 lanes, is backward compatible with Gen3, Gen2 and Gen1, and works with Windows, macOS and Linux without drivers.

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