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 factory standard lengths covering 0.5m (2ft) to 5m (16ft)
- Operating temperature: 0 to 70°C (32 to 158°F)
Specifications
| Cisco Compatible | QSFP-4SFP25G-CU50CM |
|---|---|
| Manufacturer | HT |
| Form Factor | QSFP28 to SFP28 |
| Max Data Rate | 100Gbps |
| Cable Type | Passive Twinax |
| Cable Length | 0.5m (2ft), 1m (3ft), 1.5m (5ft), 2m (7ft), 2.5m (8ft), 3m (10ft), 3.5m (11ft), 5m (16ft) |
| Wire AWG | 30AWG |
| Minimum Bend Radius | 60mm |
| Power Consumption | ≤0.125W |
| Power Supply | 3.3V |
| MTBF | =50 Million Hours |
| Jacket Material | PVC (OFNR) |
| Commercial Temperature Range | 0 to 70°C (32 to 158°F) |
| Modulation Format | QSFP28-4x 25G-NRZ SFP28-1x 25G-NRZ |
| Media | Copper |
| Application | 100G to 4x 25G Ethernet, Data Centers |
| Protocols | IEEE 802.3, QSFP28 MSA, SFF-8665 |
Applications
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 produced in 8 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-4SFP25G-CU50CM. The link runs QSFP28-4x 25G-NRZ SFP28-1x 25G-NRZ modulation, which keeps it aligned with current 100G switch silicon.
Standards and Compatibility
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.
Ordering Information
The part number depends on length, e.g. QSFP-100G-4SPC005 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), 3.5m (11ft) 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.
Quality and Testing
Every unit we ship is tested in our own test bed on mainstream switch and transport platforms before packing. Our test center has been fully upgraded, which sets us apart from other third party product providers: 10G, 40G, 100G, 200G and 400G transceivers and direct attach cables are verified on the latest top brand equipment, including selected original switches that can hardly be found elsewhere.
Packaging Options
Default packaging is simple and protective: sealed bag, blister tray, export carton. For OEM customers we also offer white-label packing, custom printed boxes and per-unit labeling with your own part numbers, so the goods can go straight into your sales channel.
Built to Your Spec
Our product line has grown with the industry for three decades, from GBIC-era modules to today's 800G and 1.6T interconnects. If the exact configuration you need is not listed, we can usually build it: custom lengths, mixed connector breakouts, OEM branding and project-specific firmware coding are all supported.
Delivery
Goods are normally sent by courier such as DHL, UPS, FedEx, TNT or EMS; air and sea freight are also available on request. Commonly used items are kept in stock for immediate shipment, and out-of-stock items are usually delivered within a few working days. We can also ship on your courier account or hand goods to your appointed forwarder.
