OSFP (RHS/Flat Top) to QSFP-DD-400G-DAC-3M10FT 400G OSFP 8 x 50G PAM4 RHS/Flat Top to 400G QSFP-DD 8 x 50G PAM4 Passive Copper Twinax Cable, 3m (10ft)

For short, high-density connections, this DAC cable combines 400G performance with a fixed 3m (10ft) cable run. It corresponds to Generic OSFP (RHS/Flat Top) to QSFP-DD-400G-DAC-3M10FT and uses a factory-terminated passive copper link without separate optical modules or patch cords.

OEM Part Number: OSFP (RHS/Flat Top) to QSFP-DD-400G-DAC-3M10FTHT Part Number: OSFP (RHS/Flat Top) to QSFP-DD-400G-DAC-3M10FT

Product Highlights

• HT-manufactured DAC assembly in 3m (10ft)
• 400G connectivity at 400Gbps
• Interface configuration: OSFP (RHS/Flat Top) to QSFP-DD
• Fixed length and part number: 3m (10ft), OSFP (RHS/Flat Top) to QSFP-DD-400G-DAC-3M10FT
• Cable construction: Passive DAC
• Conductor specification: 28AWG
• Maximum power consumption: 0.1W (OSFP End) 0.1W (QSFP-DD End)
• Minimum bend radius: 40.5mm

The listed modulation format is OSFP-8x 50G-PAM4QSFP-DD-8x 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.

The intended application is determined by the host interface and protocol support. Listed interface and protocol references include IEEE 802.3bs, OSFP MSA, QSFP-DD MSA, CMIS 4.0. 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 3m (10ft), this assembly can bridge non-aligned ports or adjacent racks while remaining a single direct-attach link. Support longer horizontal runs with suitable cable management and preserve space for cooling and future maintenance.

The rated power consumption is 0.1W (OSFP End) 0.1W (QSFP-DD 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.

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.

Each OSFP (RHS/Flat Top) to QSFP-DD-400G-DAC-3M10FT compatible cable is powered up on a suitable test interface rather than checked only for continuity. We confirm the expected identification and observe electrical continuity, link stability and diagnostic readouts. Because operating systems can apply different qualification rules by hardware revision, the intended Generic platform should be included with the order.

This product is ordered as OSFP (RHS/Flat Top) to QSFP-DD-400G-DAC-3M10FT in 3m (10ft). 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 (RHS/Flat Top) to QSFP-DD-400G-DAC-3M10FT and the 3m (10ft) length for easier inventory control.

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.