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Black PCIe 5.0 M.2 to U.2 adapter cable, 50cm, straight male-to-male connectors, bottom side exit, 15-pin power

LetLinkSo

LetLinkSo LLS-CB-1MT1UT-01 PCIe 5.0 M.2 to U.2 Adapter 50cm

SKU CH-FPES-GF51F

Connects a U.2 NVMe SSD to an M.2 2280 M-key slot with PCIe 5.0 speeds up to 128 Gbps, includes 15-pin SATA power and a 50cm cable

  • Cable length1.6 ft (50 cm)
  • First connectorM.2 M key 2280
  • Second connectorSFF-8639(U.2)
  • Connector genderMale to Male
  • Connector typeStraight
  • Units per package1

Cable Exit Direction Bottom Side Exit

  • Connect U.2 NVMe SSDs via an M.2 2280 M key slot
  • PCIe 5.0 support delivers up to 128 Gbps theoretical bandwidth
  • Works with PCIe 4.0, 3.0, 2.0 and 1.0 drives for flexible upgrades
  • Plug-and-play design needs no drivers or software to operate
  • Requires a SATA power cable connection to function

Adapter purpose and audience

The LetLinkSo LLS-CB-1MT1UT-01 connects a U.2 NVMe SSD to a motherboard M.2 2280 M-key slot. It suits desktop or server builders who need to add an enterprise-style drive without a dedicated U.2 port. It is not for users whose board lacks an M.2 M-key connector or who cannot supply SATA power.

Critical specification

The adapter runs at PCIe 5.0 x4 with a theoretical 128 Gbps ceiling and is backward compatible with PCIe 4.0, 3.0, 2.0 and 1.0 drives. A 15-pin SATA power cable must be attached for the U.2 device to operate.

Installation and common issues

The 50 cm straight cable with bottom-side exit routes cleanly in most chassis. Plug the M.2 end into the motherboard, attach the U.2 drive, then connect SATA power before booting. Forgetting the power lead is the typical reason the drive does not appear.

How it compares

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

Price $32.99
Pricier than about 70% of the 1,721 comparable items (median $22.99).

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Specifications

Product
Brand nameLetLinkSo
Product lineM.2 to U.2 Adapter
Model nameLLS-CB-1MT1UT-01
Part numberLLS-CB-1MT1UT-01
Product colorBlack
Ports & slots
First connectorM.2 M key 2280
Second connectorSFF-8639(U.2)
Connector genderMale to Male
Connector typeStraight
Size & build
Cable length1.6 ft (50 cm)
Product weight1.68 oz
In the box
Units per package1
In the boxPCIe 5.0 M.2 to U.2 Adapter x 1

Other versions of this model

3 more in the same range

Questions about this item

What does 128 Gbps mean for my U.2 NVMe SSD in a real system?

It is the theoretical PCIe 5.0 x4 ceiling; actual throughput depends on your motherboard M.2 slot generation and the SSD itself

Which interface standard does the adapter use and what does it limit?

It connects an M.2 M key 2280 slot to an SFF-8639 U.2 drive over PCIe 5.0 x4 lanes, capping at 128 Gbps

What does the adapter need to fit and mount in my case?

A free M.2 2280 M key slot on the motherboard, a 50 cm cable run to the U.2 drive, and a 15-pin SATA power connection for the adapter

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