Cisco QSFP-100G-1SPC Compatible 100G QSFP28 to 1 x 25G SFP28 Passive Copper Twinax Cable

The QSFP-100G-1SPC compatible cable series is intended for Cisco equipment requiring a 100G DAC connection. Its QSFP28 to SFP28 configuration supports a passive copper twinax connection without separate optical modules or fiber patch cords, while the verified source lengths listed below make length selection explicit.

Series Part Number: QSFP-100G-1SPCHT Part Number: QSFP-100G-1SPC

Product Highlights

• HT-manufactured compatible alternative for Cisco QSFP-100G-1SPC
• 100G aggregate connectivity at 25Gbps
• Interface configuration: QSFP28 to SFP28
• Passive Twinax / Copper
• Length configurations covered: 1m (3ft)
• Conductor specification: 26AWG
• Power consumption: ≤0.1W
• Operating temperature: 0 to 70°C (32 to 158°F)

This series page covers the following verified source length configurations: 1m (3ft). Each documented length-specific OEM reference is treated as its own product configuration; follow the corresponding product link where available. Select the required length when requesting a quotation; custom project lengths are available for discussion.

• QSFP-100G-1SPC01

Passive DAC assemblies are normally used for short switch-to-switch, switch-to-server and rack-adjacent links. They draw very little power and avoid separate optical components, but the selected length must remain within the host and cable specification.

The QSFP28 to SFP28 interface and 100G data rate must match the equipment at both ends. The source application is listed as 25G Ethernet, Data Centers. For breakout versions, confirm the lane mapping and the speed of every downstream port; matching connector shapes alone does not establish interoperability.

The assembly is configured for equipment that recognizes the QSFP-100G-1SPC series. Before shipment, we check connector identification, link establishment and electrical link stability, signal integrity and diagnostic readouts. Host hardware and firmware revisions can affect third-party cable acceptance, so customers can provide the switch, server or accelerator model and software release for a pre-order compatibility review.

This series is ordered by the base HT part number QSFP-100G-1SPC plus length and compatibility requirement. Available source configurations documented on this page are 1m (3ft); other project lengths can be discussed with the factory, and each length-specific OEM reference is reviewed under its own product configuration.

Every DAC assembly undergoes continuity and link testing, compatibility verification and a visual inspection of both connector ends. Cables are coiled without exceeding their minimum bend radius, fitted with connector protection and packed in anti-static bags or protective trays before cartoning. Project labels and packing lists are available for volume orders.

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.