100G QSFP28 4x 25G NRZ to 4x 25G SFP28 25G NRZ Passive Breakout DAC, 0.5m (2ft)

The 100G QSFP28 4x 25G NRZ to 4x 25G SFP28 25G NRZ Passive Breakout DAC, 0.5m (2ft) is a passive twinax direct attach copper cable with QSFP28 to SFP28, supporting 100Gbps links over a length of 0.5m (2ft). As a passive cable it draws essentially no power and adds no latency to the link. It is a cost effective, low latency interconnect for 100G Ethernet, data center interconnect and 5G transport networks, and complies with IEEE 802.3, QSFP28 MSA, SFF-8665.

Product Highlights

• QSFP28 to SFP28
• Data rate: 100Gbps
• Cable type: Passive Twinax
• Length: 8 standard options from 0.5m (2ft) to 5m (16ft)
• Operating temperature: 0 to 70°C (32 to 158°F)

The 100G QSFP28 4x 25G NRZ to 4x 25G SFP28 25G NRZ Passive Breakout DAC, 0.5m (2ft) is a 100Gbps direct attach copper cable for QSFP28 to SFP28 connections in 100G Ethernet, data center interconnect and 5G transport networks. This unit is available in 8 standard lengths from 0.5m (2ft) to 5m (16ft). The integrated construction removes separate optics from the link budget and reduces the number of failure points in the row. For networks standardized on Cisco hardware, it is a drop-in equivalent of the QSFP-4SFP25G-CU50CM. The link runs QSFP28-4x 25G-NRZ SFP28-1x 25G-NRZ modulation, which keeps it aligned with current 100G switch silicon.

On the compatibility side, this unit is the practical equivalent of the Cisco part QSFP-4SFP25G-CU50CM and works in Cisco systems out of the box. Standards compliance covers IEEE 802.3, QSFP28 MSA, SFF-8665.

The part number of this assembly varies with length, for example QSFP-100G-4SPC005 for the shortest option. We supply this cable in 0.5m (2ft), 1m (3ft), 1.5m (5ft), 2m (7ft), 2.5m (8ft), 3m (10ft), 3.5m (11ft) and 5m (16ft). Custom lengths beyond this range can also be produced on request. Wire gauge: 30AWG.

Transceivers and cables are individually protected against static and dust, then consolidated into sturdy cartons suitable for international courier shipment. For larger orders we shrink-wrap and strap cartons onto pallets. Tell us your warehouse or retail requirements and we will pack accordingly.

As a manufacturer serving the fiber optic industry since 1995, we have strong in-house manufacturing and design capability. From early GBIC, Xenpak and X2 modules to today's SFP, SFP+, QSFP, QSFP-DD and OSFP products, we grow together with the industry. OEM and custom-designed transceivers and cables are welcome, and our factory-direct pricing is very competitive compared with online retail stores.

Standard products are held in stock and usually ship within one to three working days. We dispatch worldwide by DHL, UPS, FedEx, TNT or EMS, and for bulk orders we arrange air or sea freight. Shipments can also be sent collect on your own courier account or delivered to your freight forwarder.

We do not ship untested stock. Each transceiver and cable is powered up in our test racks, checked for link stability, transmit power, receiver sensitivity and diagnostic readouts, and only then packed for delivery. This factory-level testing is one reason network integrators keep reordering from us year after year.