
The 100G QSFP28 4x 25G NRZ Passive DAC, 0.5m (2ft) provides a 100Gbps copper connection between QSFP28 to QSFP28 ports with a cable length of 0.5m (1.64ft). As a passive cable it draws essentially no power and adds no latency to the link. Direct attach copper keeps both latency and power consumption to a minimum, which makes it the economical choice for 100G Ethernet, data center interconnect and 5G transport networks.
Product Highlights
- QSFP28 to QSFP28
- Data rate: 100Gbps
- Cable type: Passive Twinax
- Length: 7 factory standard lengths covering 0.5m (2ft) to 5m (16ft)
- Operating temperature: 0 to 70°C (32 to 158°F)
Specifications
| Cisco Compatible | QSFP-100G-CU0.5M |
|---|---|
| Manufacturer | HT |
| Form Factor | QSFP28 to QSFP28 |
| Max. Data Rate | 100Gbps |
| Media | Copper |
| Cable Type | Passive Twinax |
| Cable Length | 0.5m (2ft), 1m (3ft), 1.5m (5ft), 2m (7ft), 2.5m (8ft), 3m (10ft), 5m (16ft) |
| Jacket Material | PVC (OFNR) |
| Minimum Bend Radius | 33.5mm |
| Wire AWG | 30AWG |
| Max. Power Consumption | ≤0.5W |
| Modulation Format | 4x 25G-NRZ to 4x 25G-NRZ |
| Power Supply | 3.3V |
| MTBF | ≈50 Million Hours |
| Commercial Temperature Range | 0 to 70°C (32 to 158°F) |
| Application | 100G Ethernet |
| Protocols | QSFP28 MSA, SFF-8662, IEEE 802.3 |
Applications
Designed for 100G Ethernet, data center interconnect and 5G transport networks, the 100G QSFP28 4x 25G NRZ Passive DAC, 0.5m (2ft) carries 100Gbps between QSFP28 to QSFP28 interfaces. This unit is produced 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. Compatibility with Cisco systems is verified in our own test lab before shipment, so the unit works out of the box as an equivalent of QSFP-100G-CU0.5M. The link runs 4x 25G-NRZ to 4x 25G-NRZ modulation, which keeps it aligned with current 100G switch silicon.
Standards and Compatibility
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.
Ordering Information
The part number depends on length, e.g. QSFP-100G-PC005 at the shortest standard length. This cable is available in 0.5m (2ft), 1m (3ft), 1.5m (5ft), 2m (7ft), 2.5m (8ft), 3m (10ft) and 5m (16ft). Lengths outside the standard range are made to order in our factory. Wire gauge: 30AWG. Volume pricing is available for project quantities.
How We Pack
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.
Custom-made Fiber Products
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.
Shipping and Lead Time
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.
Quality Assurance
Before any product leaves our factory it goes through optical performance testing, compatibility verification on real switch platforms and a final visual inspection. Our in-house test lab holds a wide range of current and legacy switches from major brands, so interoperability is proven on the actual equipment your network uses rather than assumed from paper specifications.



