As data demands surge across industries—from cloud infrastructure to AI acceleration—system architects are seeking ever-faster, more compact interconnects that can support high-density, high-bandwidth connections in constrained spaces. That’s where MCIO cables come in.

What Are MCIO Cables?

MCIO (Mini Cool Edge IO) cables are a new class of high-performance internal data cables designed for next-generation servers, storage arrays, and high-density computing platforms. These cables provide high-speed signal transmission in a compact form factor, making them ideal for environments where space is limited but performance can’t be compromised.

MCIO is part of the SFF-TA-1016 specification, designed by the SFF Committee to support PCIe Gen 4/5/6 and NVMe protocols. With options like MCIO x8 and MCIO x4, these cables are becoming essential components in cutting-edge server and data center applications.

New Product Line: MCIO Cable Assemblies by TMC

We’re proud to announce the launch of our new MCIO cable product line, including several popular and hard-to-find configurations:

• MCIO x8 to MCIO x8
  A straight high-speed link for connecting MCIO-enabled host and device ports with full Gen 4 or Gen 5 PCIe signal integrity.
• MCIO x8 to MCIO x8, One Side Right Angle
  Ideal for low-profile or tight-space chassis layouts, this assembly allows routing flexibility without compromising signal quality.
• MCIO x8 to MCIO x4 x2 “Y” Cable
  A dual-branch breakout cable that connects a single x8 host to two x4 devices—perfect for splitting high-speed bandwidth across multiple endpoints while maintaining performance.
• MCIO x8 to SlimSAS x8
  Interoperability is key. This hybrid cable connects MCIO interfaces to SlimSAS (SFF-8654) ports, bridging the gap between legacy and next-gen infrastructure.

Applications of MCIO Cables

These cables are built for:

• PCIe Gen 4/5/6 interconnects
• NVMe SSD arrays
• GPU and accelerator card connections
• Switch-to-host server links
• AI, HPC, and cloud computing environments

Their compact footprint, low crosstalk, and high-frequency performance make them a preferred choice for designers of space-optimized systems with intensive data throughput requirements.

Why Choose TMC for MCIO Cables?

At TMC – The Mate Company, we’ve built a reputation over decades for precision, quality, and reliability in specialty cable manufacturing. Here’s why our MCIO cables stand out:

• 100% high-speed signal integrity testing: Every MCIO cable is tested at the rated speed (Gen 4, 5, or 6), ensuring no surprises in deployment.
• Customized routing options: Need a particular overmold, bend radius, length, or cable exit direction? We offer tailored solutions.
• Ultra-low-loss cable and shielding: Our assemblies meet or exceed industry specs for insertion loss and EMI performance.

Whether you're prototyping a new system or deploying at scale, our MCIO cables offer the high performance, durability, and consistency that your design depends on.