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Red PCIe x4 expansion card with M.2 M-key slot and two metal brackets

STARTECH

STARTECH PEX4M2E1 M.2 NVMe adapter x4 PCIe 3.0

SKU CH-PNCD-YRSYX MPN PEX4M2E1

Adds an M.2 NVMe SSD to a desktop via a PCIe 3.0 x4 slot, supports 2242, 2260, 2280 and 22110 drives, includes low-profile and full-profile brackets

  • ColorRed
  • Cable LengthNo
  • SpecificationsConnect a PCIe M.2 SSD (NVMe or AHCI) to your computer throu
  • Connector A1 x M.2 (NGFF, M-Key, PCIe x4)
  • Connector B1 x PCI Express x4 Male
  • FeaturesBoost system speed and performance by adding a PCIe M.2 SSD
  • Add ultra-fast NVMe storage via a PCIe 3.0 x4 slot
  • Fits 2242, 2260, 2280 and 22110 M.2 drives
  • Works with PCIe 3.0, 2.0 and 1.0 motherboards
  • Includes low-profile and full-profile brackets for any case
  • Native OS support enables driver-free installation

M.2 NVMe adapter x4 PCIe 3.0

The PEX4M2E1 adds an M-Key M.2 slot to a desktop through a PCI Express x4 lane connection. It accepts NVMe or AHCI drives in 2242, 2260, 2280 and 22110 lengths. Both low-profile and full-profile brackets are included for different chassis types. The card installs in x4, x8 or x16 slots without extra drivers.

Sustained load behaviour

The adapter passes the SSD native PCIe 3.0 x4 electrical interface directly to the motherboard. Thermal performance depends on the drive itself and the airflow inside the case because the card has no active cooling. Backward compatibility with PCIe 2.0 and 1.0 slots reduces available bandwidth for long transfers. OS independence means the host manages power states and error recovery natively.

PCIe 3.0 x4 interface limits

Maximum theoretical throughput is capped at the PCIe 3.0 x4 ceiling, so drives rated for higher generations cannot exceed this bottleneck. The physical slot length limits installation to cards up to 110 mm. Motherboards without bifurcation support will not split the lane count for multiple drives. Buyers who need more than one M.2 device per slot or PCIe 4.0 speeds cannot use this adapter.

Highlights

  • Add ultra-fast NVMe storage via a PCIe 3.0 x4 slot
  • Fits 2242, 2260, 2280 and 22110 M.2 drives
  • Works with PCIe 3.0, 2.0 and 1.0 motherboards
  • Includes low-profile and full-profile brackets for any case
  • Native OS support enables driver-free installation

Specifications

BrandStarTech.com
ModelPEX4M2E1
ColorRed
Cable LengthNo
SpecificationsConnect a PCIe M.2 SSD (NVMe or AHCI) to your computer through PCI Express for ultra-fast data access
x4 PCI Express to M.2 PCIe SSD Adapter
M.2 NGFF SSD (NVMe or AHCI) Adapter Card
x4 PCIe expansion card
Expansion bay adapter supports M key M.2 NGFF PCIe SSD
Add a high speed 4-lane M.2 NGFF SSD such as Samsung 950 Pro or Samsung SM 951 to your PC
Wide compatibility with M.2 SSDs (NVMe and AHCI): 110mm, 80mm, 60mm and 42mm
OS independent for fast and easy set-up
Connector A1 x M.2 (NGFF, M-Key, PCIe x4)
Connector B1 x PCI Express x4 Male
FeaturesBoost system speed and performance by adding a PCIe M.2 SSD to your PC
Supports PCIe M.2 SSDs (NVMe and AHCI): 2242, 2260, 2280, and 22110 drives
Compatible with PCIe 3.0 motherboards, and backward compatible with PCIe 2.0 and PCIe 1.0
Fast and easy setup with native OS support
Installs into x4, x8 or x16 PCIe slots
Equipped with a full-profile bracket, and includes a half-height/low-profile bracket for installation in small form-factor computers
Dimensions7.20" x 4.80" x 7.00"
Weight1.60 oz.
Package Contents1 x x4 PCI Express to M.2 PCIe SSD Adapter
1 x low-profile bracket
1 x full-profile bracket (pre-installed)
1 x SSD standoff and installation screw
1 x quick start guide
Shipping weight0.12 kg
Package size178 × 146 × 32 mm

Questions about this item

Does the PEX4M2E1 adapter need active cooling or extra power when an NVMe SSD runs continuously?

The card draws power directly from the PCIe x4 slot and has no fan or heatsink, so it adds negligible heat and requires no auxiliary power connector.

Which M.2 SSD lengths and key types does the PEX4M2E1 support out of the box?

It accepts M-key PCIe SSDs in 2242, 2260, 2280 and 22110 sizes, and the package includes a standoff and screw for each length.

Will the PEX4M2E1 work in a motherboard that only has PCIe 2.0 slots?

Yes, the adapter is backward compatible with PCIe 2.0 and 1.0 slots, though the SSD will operate at the slower bus speed.

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