
For short reach 40Gbps links in 40G Ethernet data center and enterprise network environments, the 40G QSFP+ to 1x10G SFP+ Passive DAC, 1m (3ft) offers a factory terminated passive twinax assembly with QSFP+ to SFP+ connectors and a length of 1m (3ft). As a passive cable it draws essentially no power and adds no latency to the link. The cable meets SFF-8636, SFF-8472.
Product Highlights
- QSFP+ to SFP+
- Data rate: 40Gbps
- Cable type: Passive Twinax
- Length: 6 factory standard lengths covering 0.5m (2ft) to 7m (23ft)
- Operating temperature: 0°C to 70°C (32 to 158°F)
Specifications
| Part Number | QSFP-40G-1SPC01 |
|---|---|
| Manufacturer | HT |
| Form Factor | QSFP+ to SFP+ |
| Max. Data Rate | 40Gbps |
| Media | Copper |
| Cable Type | Passive Twinax |
| Cable Length | 0.5m (2ft), 1m (3ft), 2m (7ft), 3m (10ft), 5m (16ft), 7m (23ft) |
| Wire AWG | 26AWG |
| Minimum Bend Radius | 28mm |
| Max. Power Consumption | 0.1W Per End |
| Jacket Material | PVC (OFNR) |
| Commercial Temperature Range | 0°C to 70°C (32 to 158°F) |
| Protocols | SFF-8636, SFF-8472 |
Applications
Designed for 40G Ethernet data center and enterprise network environments, the 40G QSFP+ to 1x10G SFP+ Passive DAC, 1m (3ft) carries 40Gbps between QSFP+ to SFP+ interfaces. This unit is produced in 6 standard lengths from 0.5m (2ft) to 7m (23ft). The integrated construction removes separate optics from the link budget and reduces the number of failure points in the row. Our factory programs the compatibility coding for your switch brand before shipment and verifies each unit on real host equipment.
Standards and Compatibility
Compliance: SFF-8636, SFF-8472. 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 factory part number is QSFP-40G-1SPC01-GENERIC-2. This cable is available in 0.5m (2ft), 1m (3ft), 2m (7ft), 3m (10ft), 5m (16ft) and 7m (23ft). Lengths outside the standard range are made to order in our factory. Wire gauge: 26AWG. Samples for testing can be arranged before bulk orders.
Factory Custom Capability
Working directly with the manufacturer means no middleman limits. We support OEM and ODM projects, custom cable assemblies, alternative packaging and compatibility coding for major equipment vendors, with engineering support from the same team that designs our standard products.
Logistics
Our warehouse keeps fast-moving transceivers and cables ready for same-week dispatch. Courier, air freight and sea freight options are all available depending on your budget and schedule, and we consolidate multiple items into one shipment whenever it saves you cost.
Tested Before Shipment
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.
Packaging
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.



