Source EDSFF E1.S, E1.L, E3.S and E3.L cables, MCIO to EDSFF assemblies and EDSFF to U.2 adapters for enterprise NVMe projects. Share your host interface, PCIe generation, length and quantity for a matched quote.
EDSFF cable and adapter configurations for technical buyers.
Servers, NVMe storage, enterprise workstations, eGPU builds, validation labs, and integration projects.
Share connector type, PCIe generation, target length, quantity, and country for quote matching.
EDSFF (Enterprise and Data Center Standard Form Factor) is used in modern NVMe storage designs, including E1.S, E1.L, E3.S, and E3.L device families. The form factor affects device width, height, airflow, mounting space, and the cable or adapter path required by the platform.
LetLinkSo EDSFF connectivity covers MCIO to EDSFF cables, M.2 to EDSFF adapters, and EDSFF to U.2 bridge cards for storage validation, server integration, and enterprise sourcing.
For a correct match, confirm the EDSFF form factor first, then verify the upstream connector, lane count, PCIe generation, power design, cable direction, and available chassis clearance.
EDSFF is a family of device form factors, not one universal cable end or one universal pinout. The correct assembly depends on the device family, host interface and mechanical envelope. Use the table below as a first-pass map, then confirm the platform drawing and device-side connector before requesting a quote.
| EDSFF form factor | Typical planning focus | Connection details to confirm |
|---|---|---|
| E1.S | Compact enterprise NVMe storage and high-density server bays | Device width/height, retention, airflow, host MCIO lane count, power and cable exit |
| E1.L | Longer E1 storage layouts and capacity-oriented platforms | Chassis clearance, device retention, cable length, bend radius and power routing |
| E3.S | Wider enterprise NVMe device with additional mechanical clearance needs | Device-side connector, host interface, lane configuration, cooling and mounting |
| E3.L | Longer E3 storage layouts and platform-specific integration | Full system drawing, connector orientation, power design and validation target |
An EDSFF pinout or connector search should be treated as a compatibility check, not as permission to assume that two EDSFF products are interchangeable. Pin assignment, power, sideband and mechanical details must be verified against the relevant platform or device documentation.
The phrase “EDSFF 2-piece cable” can describe different sourcing configurations. It may mean a cable assembly with two functional connector sections, a cable plus an adapter, or a connection path that combines an upstream MCIO or M.2 interface with an E1.S or E3.S device-side interface. It is therefore not enough to quote the phrase alone.
For a usable match, send the host connector, EDSFF form factor, PCIe generation, lane count, cable length, power requirement and quantity. If the phrase comes from a bill of materials or a system drawing, attach that reference. The EDSFF 2-piece cable guide explains the terminology and links to relevant MCIO-to-EDSFF models.
Start with the SSD form factor, then identify the upstream interface. E1.S and E1.L projects often require compact, high-density storage connections, while E3.S and E3.L projects may require a different mechanical layout and clearance check.
| Project requirement | Check first | Recommended next step |
|---|---|---|
| MCIO host to EDSFF SSD | MCIO lane count, EDSFF form factor, PCIe generation, and power | Compare MCIO to EDSFF cables |
| M.2 validation platform to EDSFF | M.2 key, cable direction, SSD form factor, and clearance | Read the EDSFF selection guide |
| EDSFF to U.2 bridge | SFF-8639 compatibility, adapter card layout, and host power design | Review EDSFF adapter cards |
For a quote, include the E1.S, E1.L, E3.S, or E3.L device type, host connector, PCIe generation, target length, quantity, country, and any chassis or routing constraints.
| Model | Product | Interface | Speed / Protocol | Compatibility |
|---|---|---|---|---|
| LLS-CB-1MC1ED-01 | LetLinkSo PCIe 5.0 MCIO x4 to EDSFF 1C Cable for E1.S E1.L E3.S E3.L SSD with 15P Power | MCIO x4 | 32 GT/s | servers |
| LLS-CB-1MC2ED-01 | LetLinkSo PCIe 5.0 MCIO x8 to 2 EDSFF E1 E3 Cable for E1.S E1.L E3.S E3.L SSD with 15P Power | MCIO x8 | 32 GT/s | servers |
| LLS-CB-MTED-01 | LetLinkSo PCIe 5.0 M.2 to EDSFF E1 E3 Adapter for E1.S E1.L E3.S E3.L SSD with 15P SATA Power (Left Exit) | M.2 | 128 Gbps, 32 GT/s | servers, workstations, NVMe SSDs |
| LLS-CD-1ED1UT-01 | LetLinkSo PCIe 5.0 GEN-Z EDSFF to U.2 SFF-8639 Adapter Card NVMe SSD Converter for 28Pin E1.S E1.L E3.S E3.L, High-Speed Server Interconnect for Enterprise Data Center & IT Workstations | EDSFF- | 32 GT/s | servers, workstations, NVMe SSDs |
EDSFF describes a family of enterprise and data center SSD form factors. The connector and pinout depend on the device, host path and platform design, so confirm the full connection rather than choosing by the EDSFF label alone.
Confirm PCIe lanes, power, sideband signals, connector orientation and mechanical keying against the platform or device documentation. LetLinkSo can review a drawing or system specification as part of a B2B inquiry.
Confirm whether the project needs E1.S, E1.L, E3.S, E3.L, MCIO, U.2, or M.2 connectivity before requesting a quote.
E1.S and E3.S use different mechanical envelopes and platform layouts. Confirm the SSD form factor, retention method, airflow clearance, and cable exit direction before selecting an assembly.
Match the MCIO lane count and PCIe generation to the EDSFF device, then confirm E1.S, E1.L, E3.S, or E3.L form factor, power requirements, target length, and quantity.
No. EDSFF sourcing is handled as B2B inquiry because price depends on configuration, quantity, and project requirements.