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Main image of PCIe 4.0 M.2 to U.2 SFF-8639 Cable, Left Exit | PCIe Gen4 x4 Lanes, 15Pin SATA Power Supply, 1.6ft (50cm), for NVMe SSD, Server, Backplane, Motherboard,Workstation

Alt view image 2 of 7 - PCIe 4.0 M.2 to U.2 SFF-8639 Cable, Left Exit | PCIe Gen4 x4 Lanes, 15Pin SATA Power Supply, 1.6ft (50cm), for NVMe SSD, Server, Backplane, Motherboard,Workstation

Alt view image 3 of 7 - PCIe 4.0 M.2 to U.2 SFF-8639 Cable, Left Exit | PCIe Gen4 x4 Lanes, 15Pin SATA Power Supply, 1.6ft (50cm), for NVMe SSD, Server, Backplane, Motherboard,Workstation

Alt view image 4 of 7 - PCIe 4.0 M.2 to U.2 SFF-8639 Cable, Left Exit | PCIe Gen4 x4 Lanes, 15Pin SATA Power Supply, 1.6ft (50cm), for NVMe SSD, Server, Backplane, Motherboard,Workstation

Alt view image 5 of 7 - PCIe 4.0 M.2 to U.2 SFF-8639 Cable, Left Exit | PCIe Gen4 x4 Lanes, 15Pin SATA Power Supply, 1.6ft (50cm), for NVMe SSD, Server, Backplane, Motherboard,Workstation

Alt view image 6 of 7 - PCIe 4.0 M.2 to U.2 SFF-8639 Cable, Left Exit | PCIe Gen4 x4 Lanes, 15Pin SATA Power Supply, 1.6ft (50cm), for NVMe SSD, Server, Backplane, Motherboard,Workstation

Alt view image 7 of 7 - PCIe 4.0 M.2 to U.2 SFF-8639 Cable, Left Exit | PCIe Gen4 x4 Lanes, 15Pin SATA Power Supply, 1.6ft (50cm), for NVMe SSD, Server, Backplane, Motherboard,Workstation

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PCIe 4.0 M.2 to U.2 SFF-8639 Cable, Left Exit | PCIe Gen4 x4 Lanes, 15Pin SATA Power Supply, 1.6ft (50cm), for NVMe SSD, Server, Backplane, Motherboard,Workstation

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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.

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Data moves faster than ever, and your hardware shouldn’t hold you back. At LetLinkSo, we engineer next-generation high-speed interconnects that power modern digital experiences.
We understand the frustration of signal degradation, latency, and hardware bottlenecks. We deliver server-grade, precision-engineered connectivity solutions—ensuring seamless, zero-compromise performance for gaming rigs and enterprise networks.
New Release
MCIO Cable
Card
Cable

LetLinkSo Gen4 PCIe 4.0 M.2 to U.2 SFF-8639 NVMe SSD Card Connector Adapter Cable

Compared

	PCIeG4 M.2 to U.2 Adapter	PCIe5.0x16 to 2xMCIO Card	Gen5 MCIOx8 to U.2 Cable	PCIeG5 M.2 to U.2 Adapter	Gen4 MCIOx8 to U.2 Cable
Customer Reviews	—	—	—	—	—
Price	—	—	—	—	—
Brand:	LetLinkSo	LetLinkSo	LetLinkSo	LetLinkSo	LetLinkSo
Connectivity Technology:	PCIe 4.0	PCIe 5.0	PCIe 5.0	PCIe 5.0	PCIe 4.0
Lanes:	4	16	8	4	8
Cable Length:	1.6 feet (50 cm)	5.7"L x 1.57"W x 0.78"H	2.1 feet (65 cm)	1.6 feet (50 cm)	1.6 feet (50 cm)
Connector Gender:	Male-to-Female	Male-to-Male	Male-to-Female	Male-to-Female	Male-to-Female
Data Transfer Rate:	Up to 64 Gbps	up to 512 Gbps	Up to 256 Gbps	Up to 128 Gbps	Up to 128 Gbps

Compared

PCIeG4 M.2 to U.2 Adapter	PCIe5.0x16 to 2xMCIO Card	Gen5 MCIOx8 to U.2 Cable	PCIeG5 M.2 to U.2 Adapter	Gen4 MCIOx8 to U.2 Cable
Customer Reviews	Customer Reviews	Customer Reviews	Customer Reviews	Customer Reviews
—	—	—	—	—
Price	Price	Price	Price	Price
—	—	—	—	—
Brand:	Brand:	Brand:	Brand:	Brand:
LetLinkSo	LetLinkSo	LetLinkSo	LetLinkSo	LetLinkSo
Connectivity Technology:	Connectivity Technology:	Connectivity Technology:	Connectivity Technology:	Connectivity Technology:
PCIe 4.0	PCIe 5.0	PCIe 5.0	PCIe 5.0	PCIe 4.0
Lanes:	Lanes:	Lanes:	Lanes:	Lanes:
4	16	8	4	8
Cable Length:	Cable Length:	Cable Length:	Cable Length:	Cable Length:
1.6 feet (50 cm)	5.7"L x 1.57"W x 0.78"H	2.1 feet (65 cm)	1.6 feet (50 cm)	1.6 feet (50 cm)
Connector Gender:	Connector Gender:	Connector Gender:	Connector Gender:	Connector Gender:
Male-to-Female	Male-to-Male	Male-to-Female	Male-to-Female	Male-to-Female
Data Transfer Rate:	Data Transfer Rate:	Data Transfer Rate:	Data Transfer Rate:	Data Transfer Rate:
Up to 64 Gbps	up to 512 Gbps	Up to 256 Gbps	Up to 128 Gbps	Up to 128 Gbps

Data moves faster than ever, and your hardware shouldn’t hold you back. At LetLinkSo, we engineer next-generation high-speed interconnects that power modern digital experiences.
We understand the frustration of signal degradation, latency, and hardware bottlenecks. We deliver server-grade, precision-engineered connectivity solutions—ensuring seamless, zero-compromise performance for gaming rigs and enterprise networks.
New Release
MCIO Cable
Card
Cable

LetLinkSo Cutting-edge M.2 to U.2 Adapter PCIe 4.0

Enhanced System Performance: This M.2 to U.2 NVMe SSD adapter is engineered to effortlessly expand your system's potential by integrating U.2 PCIe NVMe SSDs, delivering high-speed performance through your motherboard's M.2 2280 M key compatible slot.

Ultra-Fast Data Transfers: Future-proof your storage with support for the latest PCIe 4.0 U.2 to M.2 NVMe adapter, offering a staggering theoretical maximum transfer speed of 64 Gbps.

Easy Installation: Forget complicated setup processes. This M.2 to U.2 cable is ready to roll right out of the box, with no drivers or software needed.

Backward Compatibility: Designed with versatility in mind, this M.2 to U.2 NVMe adapter is compatible with a range of PCIe generations, including 3.0, 2.0, and 1.0.

Durable Design: Built to last, this U.2 to M.2 adapter cable is constructed with premium materials to ensure enduring reliability, even under the most demanding conditions.

Don't settle for slow. Invest in this M.2. PCI-e NVMe to U.2 SFF-8639 adapter.

Product Specifications:
Connector A: 1 x Male M.2 M key 2280
Connector B: 1 x Straight Female SFF-8639(U.2)
Connector Gender: Male to Male
Data Transfer Rate: Up to 64 Gbps
Lanes: 4
Compliance Standards: SCSI (SAS), PCIe 4.0, 3.0, 2.0, 1.0

Product information

Brand	LetLinkSo
Connector Type	M.2 M Key 2280, Straight Sff-8639 U.2
Cable Type	PCIe 4.0 \ SAS
Compatible Devices	Backplane, Motherboard, SSD, Server, Workstation
Special Feature	Backward Compatibility, Custom OEM/ODM and Bulk Supply, Effortless Installation, Enhanced System Performance, PCIe 4.0 Speed
Other Special Features of the Product	Backward Compatibility, Custom OEM/ODM and Bulk Supply, Effortless Installation, Enhanced System Performance, PCIe 4.0 Speed
Connector Gender	Male-to-Male
Data Transfer Rate	64 gigabits_per_second
Number of Pins	22
Connectivity Technology	PCIe 4.0 \ SAS
Recommended Uses For Product	Big Data, Data Center, HPC, Virtualization and Cloud Computing
Specification Met	RoHS
Indoor Outdoor Usage	Indoor
Item Weight	1.68 ounces
Number of Items	1
Brand Name	LetLinkSo
Model Name	High-Speed M.2 to U.2 Cable
Customer Package Type	Standard Packaing
Model	Left Exit
Item Length	1.6 feet
Manufacturer	DataLink Sphere
Included Components	PCIe 4.0 M.2 to U.2 Adapter x 1
Part Number	LLS-CB-1MT1UT-02
Color	Black&Blue
Outer Material	Nylon, Polybutylene Terephthalate(PBT), Polyvinyl Chloride (PVC)

Model
Series	High-Speed M.2 to U.2 Cable, LLS-CB-1MT1UT-02
Model	Left Exit
Part Number	LLS-CB-1MT1UT-02

Details
Color	Black
Cable Length	Normal
Changer Type	DVI (Male) to VGA (Male)
Specifications	RoHS

Connectors
Connector B	Male-to-Male
Terminal Gender	Male-to-Male
Connector Style	Male

Features
Features	Enhanced System Performance, PCIe 4.0 Speed

Dimensions & Weight
Dimensions	Normal
Weight	1.68 ounces

Package Contents
Package Quantity	1
Package Contents	1 x PCIe 4.0 \ SAS

Disclaimer
Disclaimer	not_applicable, true

Additional Information
First Listed on Newegg	September 16, 2026

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PCIe 4.0 M.2 to U.2 SFF-8639 Cable, Left Exit | PCIe Gen4 x4 Lanes, 15Pin SATA Power Supply, 1.6ft (50cm), for NVMe SSD, Server, Backplane, Motherboard,Workstation

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Item#: 9SIC8KHM6J0088

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PCIe 4.0 M.2 to U.2 SFF-8639 Cable, Left Exit | PCIe Gen4 x4 Lanes, 15Pin SATA Power Supply, 1.6ft (50cm), for NVMe SSD, Server, Backplane, Motherboard,Workstation

New Release

MCIO Cable

Card

Cable

Compared

Compared

New Release

MCIO Cable

Card

Cable

Product information

Learn more about the Generic Brand Left Exit

Customer Reviews of the Generic Brand Left Exit

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

Return Policies

Manufacturer Contact Info