OSFP (IHS/Finned Top) to 4x QSFP56-400G-DAC-1.5M5FT 400G OSFP IHS/Finned Top to 4 x 100G QSFP56 2 x 50G PAM4 Passive Copper Breakout Cable, 1.5m (5ft)

With a fixed 1.5m (5ft) cable and OSFP (IHS/Finned Top) to 4x QSFP56, the OSFP (IHS/Finned Top) to 4x QSFP56-400G-DAC-1.5M5FT compatible assembly simplifies 400G deployment. It is manufactured and tested by HT for multi-vendor equipment.

OEM Part Number: OSFP (IHS/Finned Top) to 4x QSFP56-400G-DAC-1.5M5FTHT Part Number: OSFP (IHS/Finned Top) to 4x QSFP56-400G-DAC-1.5M5FT

Product Highlights

• HT-manufactured DAC assembly in 1.5m (5ft)
• 400G connectivity at 400Gbps
• Interface configuration: OSFP (IHS/Finned Top) to 4x QSFP56
• Fixed length and part number: 1.5m (5ft), OSFP (IHS/Finned Top) to 4x QSFP56-400G-DAC-1.5M5FT
• Cable construction: Passive Twinax
• Conductor specification: 28AWG
• Maximum power consumption: 0.1W (OSFP End) 0.1W (QSFP56 Per End)
• Minimum bend radius: 30mm

The listed modulation format is 8x 50G-PAM4 to Quad 2x 50G-PAM4. Both host interfaces must be configured for the same aggregate rate and lane arrangement. A connector that fits mechanically does not by itself guarantee that the remote port supports this encoding or breakout mode.

This assembly uses 28AWG conductors, PVC (OFNR) jacket, minimum bend radius 30mm. 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 determined by the host interface and protocol support. Listed interface and protocol references include OSFP MSA, IEEE 802.3cd, CMIS v4.0. Confirm that the host firmware and port configuration support the same operating mode.

The OSFP (IHS/Finned Top) to 4x 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 additional half metre beyond a one-metre assembly gives OSFP (IHS/Finned Top) to 4x QSFP56-400G-DAC-1.5M5FT useful routing flexibility when the ports are not directly aligned. It can accommodate a different rack unit or a short service loop, but excess cable should be dressed loosely rather than folded into a tight coil.

OSFP (IHS/Finned Top) to 4x QSFP56-400G-DAC-1.5M5FT occupies the middle of this family between OSFP (IHS/Finned Top) to 4x QSFP56-400G-DAC-1M3FT at 1m (3ft) and OSFP (IHS/Finned Top) to 4x QSFP56-400G-DAC-2M7FT at 2m (7ft). 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.

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 assembly is configured for equipment that recognizes OSFP (IHS/Finned Top) to 4x QSFP56-400G-DAC-1.5M5FT. Before shipment, we inspect both connectors and verify identification, link establishment and electrical continuity, link stability and diagnostic readouts. Host hardware and firmware revisions can affect third-party cable acceptance, so customers can provide the equipment model and software release for a pre-order compatibility review.

This product is ordered as OSFP (IHS/Finned Top) to 4x QSFP56-400G-DAC-1.5M5FT in 1.5m (5ft). 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.

Quality control includes connector appearance, cable identification and functional verification. Packing materials are selected to keep the connector housings and cable boots from taking impact during transport, and the coil is not compressed into an undersized bundle. Volume orders can include customer-specific labels and packing documentation.

Available stock is usually packed and handed to the carrier within one to three working days. Delivery can be arranged by international express, air cargo or sea freight, with tracking details supplied after dispatch. Freight-collect shipments and delivery to a customer warehouse or forwarder can also be coordinated.