OSFP (RHS/Flat Top) to OSFP (RHS/Flat Top)-400G-DAC-1M3FT 400G OSFP 4 x 100G PAM4 RHS/Flat Top Passive Copper Twinax Cable, 1m (3ft)

With a fixed 1m (3ft) cable and OSFP (RHS/Flat Top) to OSFP (RHS/Flat Top), the OSFP (RHS/Flat Top) to OSFP (RHS/Flat Top)-400G-DAC-1M3FT compatible assembly simplifies 400G deployment. It is manufactured and tested by HT for multi-vendor equipment.

OEM Part Number: OSFP (RHS/Flat Top) to OSFP (RHS/Flat Top)-400G-DAC-1M3FTHT Part Number: OSFP (RHS/Flat Top) to OSFP (RHS/Flat Top)-400G-DAC-1M3FT

Product Highlights

• HT-manufactured DAC assembly in 1m (3ft)
• 400G connectivity at 400Gbps
• Interface configuration: OSFP (RHS/Flat Top) to OSFP (RHS/Flat Top)
• Fixed length and part number: 1m (3ft), OSFP (RHS/Flat Top) to OSFP (RHS/Flat Top)-400G-DAC-1M3FT
• Cable construction: Passive Twinax
• Conductor specification: 28AWG
• Maximum power consumption: 0.1W
• Minimum bend radius: 40.5mm

The listed modulation format is 4x 100G-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 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 determined by the host interface and protocol support. Listed interface and protocol references include OSFP MSA, CMIS Rev4.0, IEEE 802.3cd. Confirm that the host firmware and port configuration support the same operating mode.

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.

At 1m (3ft), OSFP (RHS/Flat Top) to OSFP (RHS/Flat Top)-400G-DAC-1M3FT is a practical choice for direct connections within one rack. Route the cable along the intended management path rather than pulling it diagonally across adjacent connectors, and leave enough clearance for insertion, removal and front-panel airflow.

OSFP (RHS/Flat Top) to OSFP (RHS/Flat Top)-400G-DAC-1M3FT occupies the middle of this family between OSFP (RHS/Flat Top) to OSFP (RHS/Flat Top)-400G-DAC-0.5M2FT at 0.5m (2ft) and OSFP (RHS/Flat Top) to OSFP (RHS/Flat Top)-400G-DAC-1.5M5FT at 1.5m (5ft). 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. 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.

Compatibility is more than matching the OSFP (RHS/Flat Top) to OSFP (RHS/Flat Top) shape. This assembly is prepared for hosts expecting OSFP (RHS/Flat Top) to OSFP (RHS/Flat Top)-400G-DAC-1M3FT and is checked for identification, stable link behavior and electrical continuity, link stability and diagnostic readouts. We recommend confirming the equipment model and software release for critical deployments or mixed-vendor installations.

When ordering, specify OSFP (RHS/Flat Top) to OSFP (RHS/Flat Top)-400G-DAC-1M3FT, cable length 1m (3ft) and the host platform. This allows our team to verify both the physical assembly and the compatibility requirement before production. Neutral labeling and customer packing lists can be arranged for volume orders.

Before packing, our team checks the cable jacket, connector boots, latches and identification of each assembly. The cable is then secured in a loose coil and protected against dust and connector impact. Neutral packaging, customer part-number labels and project-specific carton lists can be supplied on request.

Stock items are generally dispatched within one to three working days after order confirmation. DHL, UPS, FedEx, TNT and EMS are available for international delivery; larger consolidated orders can move by air or sea freight. Customer courier accounts and nominated forwarders are accepted.