MCIO 16x (SFF-TA-1016) Str. 124P to Dual MCIO 8x 74P Cable

MCIO 16x (SFF-TA-1016) Str. 124P to Dual MCIO 8x 74P Cable

The MCIO 16x (SFF‑TA‑1016) Str. 124P to Dual MCIO 8x 74P Cable is a high‑performance internal breakout cable designed for next‑generation data centres, enterprise servers, and high‑performance computing systems. It takes a single MCIO (Mini Cool Edge IO) 16‑lane host port, compliant with the SFF‑TA‑1016 standard, and bifurcates it into two independent MCIO 8‑lane output ports, each utilising a 74‑pin connector. This configuration allows system architects to efficiently distribute a wide 16‑lane PCIe link into two separate 8‑lane channels, enabling flexible connectivity to multiple NVMe drives, accelerators, or other PCIe peripherals within space‑constrained chassis. Engineered to support PCIe 4.0 and PCIe 5.0 data rates up to 32.0 GT/s, the cable delivers exceptional signal integrity through precision‑tuned twin‑axial conductors, tight impedance control, and robust multi‑layer shielding. The compact form factor of the MCIO connectors, combined with a flexible yet durable cable jacket, facilitates neat internal routing and improved airflow, making this cable a vital component for high‑density storage and compute nodes that demand maximum bandwidth and low latency.

Features

• The cable fully complies with the SFF‑TA‑1016 specification on the host side and provides a seamless 16‑lane to dual‑8‑lane breakout, preserving the aggregate bandwidth of a full x16 PCIe link while enabling connection to two separate endpoints.
• Both the 124‑pin MCIO input connector and the two 74‑pin MCIO output connectors are straight, male types, designed for direct board‑to‑cable mating with positive locking mechanisms. The connectors feature a dual‑push‑pull latching system that ensures a secure and vibration‑resistant connection, which is essential for maintaining data integrity in high‑vibration environments such as rack‑mounted servers and storage arrays.
• The cable is constructed with low‑loss 30 AWG twin‑axial wires, and each differential pair is individually shielded with foil, while an overall braid and outer foil shield provide additional protection against electromagnetic interference and crosstalk. This comprehensive shielding minimises insertion loss and signal skew, ensuring clean eye diagrams even at PCIe 5.0 speeds.
• The passive copper design introduces no active retimers or redrivers, resulting in near‑zero added latency and negligible power consumption.
• The cable jacket is engineered for flexibility, allowing tight‑radius bends and neat routing through dense chassis layouts, which also improves internal airflow and cooling efficiency.
• Supporting data rates up to 32.0 GT/s, the cable is backward compatible with PCIe 4.0, 3.0, and earlier generations, offering versatile integration into mixed‑generation systems.

Specifications

• Product Name: MCIO 16x (SFF‑TA‑1016) Str. 124P to Dual MCIO 8x 74P Cable
• Connector A: MCIO (SFF‑TA‑1016) 16x, 124‑Position, Male, Straight
• Connector B: 2x MCIO (SFF‑TA‑1016) 8x, 74‑Position each, Male, Straight
• Connector Gender: Male to Male
• Cable Type: Passive copper breakout, straight to straight (breakout)
• Standard Lengths: 0.5 m, 0.8 m, 1.0 m (custom lengths available upon request)
• Data Rate: Up to 32.0 GT/s (PCIe 5.0); compatible with 16.0 GT/s (PCIe 4.0) and 8.0 GT/s (PCIe 3.0)
• Supported Protocols: PCI Express 5.0 / 4.0 / 3.0 and earlier
• Wire Gauge: 30 AWG low‑loss twin‑axial
• Shielding: Individual pair foil shielding + overall braid and outer foil shield
• Impedance: 85 ohm ± 10% (differential)
• Insertion Loss: Optimised for PCIe 5.0 channel budget (typical performance compliant with SFF‑TA‑1016 requirements)
• Operating Temperature: -20°C to +85°C
• Storage Temperature: -40°C to +85°C
• RoHS Compliance: Yes, fully compliant with RoHS and REACH directives

Applications

• This cable is ideally suited for NVMe storage expansion, where a motherboard or host adapter equipped with a single MCIO x16 port can be connected to two separate NVMe SSD enclosures or backplanes, each requiring an 8‑lane interface.
• It also serves high‑performance workstations and servers that need to distribute PCIe bandwidth to multiple GPUs, AI accelerators, or FPGA cards, enabling parallel processing for machine learning, scientific simulations, and content creation.
• In data centre infrastructure, the cable supports composable disaggregated architectures by linking a host CPU to two independent compute or storage modules, maximising resource utilisation and scalability.
• System integrators and prototyping labs benefit from the cable’s flexibility, as it simplifies the connection of development boards or custom hardware that feature MCIO ports, reducing design complexity and time‑to‑market.
• Additionally, the cable is a reliable solution for space‑constrained systems where using a single x16 connector and splitting it into two x8 links saves board real estate and allows more efficient layout of peripheral devices.

For custom lengths, special jacket materials, or alternative connector configurations, please contact our sales team to tailor the cable to your specific system requirements.

CAB-MCIOi16-2xMCIOi8

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