100G QSFP28 4x 25G NRZ Passive DAC

For short reach 100Gbps links in 100G Ethernet, data center interconnect and 5G transport networks, the 100G QSFP28 4x 25G NRZ Passive DAC, 0.5m (2ft) offers a factory terminated passive twinax assembly with QSFP28 to QSFP28 connectors and a length of 0.5m (1.64ft). As a passive cable it draws essentially no power and adds no latency to the link. The cable meets QSFP28 MSA, SFF-8662, IEEE 802.3.

Product Highlights

• QSFP28 to QSFP28
• Data rate: 100Gbps
• Cable type: Passive Twinax
• Length: available from 0.5m (2ft) to 5m (16ft) in 7 standard options
• Operating temperature: 0 to 70°C (32 to 158°F)

The 100G QSFP28 4x 25G NRZ Passive DAC, 0.5m (2ft) is a 100Gbps direct attach copper cable for QSFP28 to QSFP28 connections in 100G Ethernet, data center interconnect and 5G transport networks. This unit is supplied in 7 standard lengths from 0.5m (2ft) to 5m (16ft). Because the assembly is factory terminated and tested as a complete link, installation is plug and play on both ends. It is interoperable with Cisco platforms and replaces the Cisco part QSFP-100G-CU0.5M directly. The link runs 4x 25G-NRZ to 4x 25G-NRZ modulation, which keeps it aligned with current 100G switch silicon.

Compliance: QSFP28 MSA, SFF-8662, IEEE 802.3. For projects standardized on Cisco hardware, this product replaces the QSFP-100G-CU0.5M directly, with identical fit and function. Every unit's EEPROM coding and link behavior are verified on real host equipment in our lab, so what arrives at your site is ready to use.

Part numbers vary by length, for instance QSFP-100G-PC005 for the shortest standard version. You can order this assembly in 0.5m (2ft), 1m (3ft), 1.5m (5ft), 2m (7ft), 2.5m (8ft), 3m (10ft) and 5m (16ft). Non-standard lengths can be produced on request. Wire gauge: 30AWG. Samples for testing can be arranged before bulk orders.

We ship to customers around the world every week. Express couriers handle most orders door to door in a few days; larger consignments go by air or sea to keep freight costs down. Tracking information is provided for every shipment, and we are flexible on shipping accounts and forwarders.

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.

Each unit is sealed in an anti-static bag, cushioned in a blister tray and boxed in an export-grade carton. Outer cartons carry handling marks and can be palletized for air or sea freight. If your project requires retail boxes, barcodes or your own brand on the label, we can arrange that as well.

We have manufactured fiber optic connectivity products since 1995 and run our own production lines in Shenzhen. Beyond the standard catalog we build to order: special cable lengths, custom connector combinations, vendor-specific compatibility coding and private labeling. Send us your requirement and our engineers will quote a practical solution.