Dell DAC-Q28-100G Compatible 100G QSFP28 4 x 25G NRZ Passive Copper Twinax Cable

The DAC-Q28-100G compatible cable series is intended for Dell equipment requiring a 100G DAC connection. Its QSFP28 to QSFP28 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: DAC-Q28-100GHT Part Number: DAC-Q28-100G

Product Highlights

• HT-manufactured compatible alternative for Dell DAC-Q28-100G
• 100G aggregate connectivity at 100Gbps
• Interface configuration: QSFP28 to QSFP28
• Passive Twinax / Copper
• Length configurations covered: 0.5m (2ft), 1m (3ft), 1.5m (5ft), 2m (7ft), 2.5m (8ft), 3m (10ft) and 5m (16ft)
• Conductor specification: 30AWG
• Power consumption: ≤0.5W
• Operating temperature: 0 to 70°C (32 to 158°F)

• DAC-Q28-100G-0.5M
• DAC-Q28-100G-1M
• DAC-Q28-100G-1.5M
• DAC-Q28-100G-2M
• DAC-Q28-100G-2.5M
• DAC-Q28-100G-3M
• DAC-Q28-100G-5M

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 QSFP28 interface and 100G data rate must match the equipment at both ends. The source application is listed as 100G Ethernet. 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 DAC-Q28-100G 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.

When ordering, specify DAC-Q28-100G, the host platform and one of the covered configurations: 0.5m (2ft) and 1m (3ft). If your purchase documentation uses any of the listed OEM part numbers, include that identifier as well so our team can verify the intended version before production.

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.