MCIO 74P TO EDSFF 2C SSD GEN 5

‌ MCIO 74P to EDSFF 2C SSD Gen 5 – Technical Overview

1. MCIO (Mini Cool Edge IO) 74P

MCIO 74P is a high-density, high-speed connector defined in the PCIe 5.0/6.0 ecosystem.

74P = 74 pins (or contacts).

Supports:

Up to x16 PCIe lanes.

DATA rates up to 32 GT/s per lane (PCIe 5.0).

Commonly used for cable-based connections between the motherboard/baseboard and devices like SSDs, GPUs, and switches.

Small form factor suitable for tight data center chassis.

2. EDSFF 2C SSD (Enterprise and Datacenter SSD Form Factor)

EDSFF (also known as E1.S, E1.L, E3.S, E3.L) is a family of SSD form factors designed to replace traditional M.2 and U.2.

2C refers to a specific size in the EDSFF family — often E1.S 9.5mm or similar.

Benefits:

High thermal and power envelope.

Optimized for dense storage and hot-swap capabilities.

Ideal for PCIe Gen 5 NVMe SSDs.

3. PCIe Gen 5 Support

Delivers double the bandwidth of Gen 4: 32 GT/s per lane, up to 128 GB/s (x16).

Enables high-performance NVMe SSDs with very low latency and high throughput.

4. MCIO 74P to EDSFF Adapter/Cable

A bridge/interface connecting a MCIO port (on CPU/baseboard/switch) to an EDSFF 2C Gen 5 NVMe SSD.

Enables use of next-gen SSDs in server platforms with MCIO connectors.

Requires signal integrity optimization for Gen 5 speeds.

Typically includes:

Shielded cable assembly.

Retimer or redriver (optional, depending on length).

EDSFF-compatible end connector.

???? Use Case

This setup is common in modern servers, where a high-speed MCIO port on a motherboard or PCIe switch is cabled to a backplane populated with EDSFF 2C SSDs for:

Cloud storage.

AI/ML training and inference.

Hyperscale data centers.