OSFP (IHS/Finned Top) to 2x QSFP56-400G-DAC-2.5M8FT 400G OSFP 8 x 50G PAM4 IHS/Finned Top to 2 x 200G QSFP56 4 x 50G PAM4 Passive Copper Breakout Cable, 2.5m (8ft)

The HT-manufactured OSFP (IHS/Finned Top) to 2x QSFP56-400G-DAC-2.5M8FT compatible cable provides 400G connectivity for multi-vendor equipment. This 2.5m (8ft) version is a factory-terminated passive copper link without separate optical modules or patch cords, with an exact part number and length that can be matched directly to the equipment requirement.

OEM Part Number: OSFP (IHS/Finned Top) to 2x QSFP56-400G-DAC-2.5M8FTHT Part Number: OSFP (IHS/Finned Top) to 2x QSFP56-400G-DAC-2.5M8FT

Product Highlights

• HT-manufactured DAC assembly in 2.5m (8ft)
• 400G connectivity at 400Gbps
• Interface configuration: OSFP (IHS/Finned Top) to 2x QSFP56
• Fixed length and part number: 2.5m (8ft), OSFP (IHS/Finned Top) to 2x QSFP56-400G-DAC-2.5M8FT
• Cable construction: Passive Twinax
• Conductor specification: 28AWG
• Maximum power consumption: 0.1W (OSFP End) 0.1W (QSFP56 Per End)
• Minimum bend radius: 40.5mm

The rated power consumption is 0.1W (OSFP End) 0.1W (QSFP56 Per End). Include this load in the host-port power and thermal budget, especially in densely populated switches. Maintain front-panel clearance and do not bundle the cable so tightly that it obstructs airflow around the connectors.

The OSFP (IHS/Finned Top) to 2x QSFP56 configuration divides the high-speed interface into multiple lower-speed connections. Verify the upstream lane assignment, downstream port speeds and breakout setting on the host before connecting the assembly. Each branch must attach to the correct remote interface.

A passive DAC has no separate optical conversion stage. Its low-power, low-latency operation is useful for short equipment links, but the assembly must remain within the length and signaling mode accepted by both hosts.

The 2.5m (8ft) version is useful when a two-metre run would leave insufficient working slack. Before installation, check the complete horizontal and vertical path so that OSFP (IHS/Finned Top) to 2x QSFP56-400G-DAC-2.5M8FT reaches both ports without tension at either connector.

OSFP (IHS/Finned Top) to 2x QSFP56-400G-DAC-2.5M8FT occupies the middle of this family between OSFP (IHS/Finned Top) to 2x QSFP56-400G-DAC-2M7FT at 2m (7ft) and CAB-O-2Q-400G-3M at 3m (10ft). It adds 0.5m over the shorter option for extra routing clearance, while the next longer version adds another 0.5m. Measure the managed path and choose this version when its reach is sufficient without creating the slack associated with the longer assembly.

This assembly uses 28AWG conductors, PVC jacket, minimum bend radius 40.5mm. These mechanical characteristics affect how the cable should be dressed behind the equipment. Avoid sharp edges, excessive ties and repeated tight bends close to the connector boots.

The intended application is 400G Ethernet. Listed interface and protocol references include OSFP MSA, CMISRev4.0, IEEE802.3cd, SFF-8436, SFF-8665, SFF-8679, SFF-8636. Confirm that the host firmware and port configuration support the same operating mode.

The HT cable carries the compatibility configuration associated with OSFP (IHS/Finned Top) to 2x QSFP56-400G-DAC-2.5M8FT, while its mechanical assembly remains the fixed 2.5m (8ft) version described here. Incoming inspection, connector examination and a live link test are completed before packing. Customers with unusually old or new Generic software can request a pre-order check.

This product is ordered as OSFP (IHS/Finned Top) to 2x QSFP56-400G-DAC-2.5M8FT in 2.5m (8ft). Include the equipment model and software release if you would like a pre-order compatibility review. Other lengths use different part numbers and should not be substituted into the same order line.

HT inspects and tests every completed cable before it enters finished stock. Protective caps or covers are fitted where applicable, followed by anti-static or tray packaging and an outer carton. Custom labels can cross-reference the customer part number, OSFP (IHS/Finned Top) to 2x QSFP56-400G-DAC-2.5M8FT and the 2.5m (8ft) length for easier inventory control.

Standard configurations normally ship within one to three working days. Worldwide courier, air freight and sea freight options are available, and shipments can also be sent on your own courier account or delivered to an appointed forwarder.