
The 100G SFP-DD 2 x 50G PAM4 to QSFP56 2 x 50G PAM4 Passive DAC, 0.5m (2ft) provides a 100Gbps copper connection between SFP-DD to QSFP56 ports with a cable length of 0.5m (2ft). 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 and enterprise network environments.
Product Highlights
- SFP-DD to QSFP56
- Data rate: 100Gbps
- Cable type: Passive Twinax
- Length: 4 factory standard lengths covering 0.5m (2ft) to 3m (10ft)
- Operating temperature: 0 to 70°C (32 to 158°F)
Specifications
| Part Number | SDD-100G-QPC005 |
|---|---|
| Manufacturer | HT |
| Form Factor | SFP-DD to QSFP56 |
| Max. Data Rate | 100Gbps |
| Media | Copper |
| Cable Type | Passive Twinax |
| Cable Length | 0.5m (2ft), 1m (3ft), 2m (7ft), 3m (10ft) |
| Jacket Material | PVC (OFNR) |
| Minimum Bend Radius | 17mm |
| Wire AWG | 30AWG |
| Max. Power Consumption | 0.1W |
| Modulation Format | SFP-DD-2x 50G-PAM4QSFP56-2x 50G-PAM4 |
| Commercial Temperature Range | 0 to 70°C (32 to 158°F) |
| Application | 100G Ethernet, 128G Fibre Channel |
| Protocols | SFPDD: SFP-DD MSA, SFP-DD MIS, IEEE 802.3cdQSFP56: SFF-8661, SFF-8636, IEEE 802.3cd |
Applications
Designed for 100G Ethernet data center and enterprise network environments, the 100G SFP-DD 2 x 50G PAM4 to QSFP56 2 x 50G PAM4 Passive DAC, 0.5m (2ft) carries 100Gbps between SFP-DD to QSFP56 interfaces. This unit is produced in 4 standard lengths from 0.5m (2ft) to 3m (10ft). It installs directly into standard ports with no separate transceivers or patch cords to manage at either end. Our factory programs the compatibility coding for your switch brand before shipment and verifies each unit on real host equipment. The link runs SFP-DD-2x 50G-PAM4QSFP56-2x 50G-PAM4 modulation, which keeps it aligned with current 100G switch silicon.
Standards and Compatibility
Compliance: SFPDD: SFP-DD MSA, SFP-DD MIS, IEEE 802.3cdQSFP56: SFF-8661, SFF-8636, IEEE 802.3cd. 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 SDD-100G-QPC005. This cable is available in 0.5m (2ft), 1m (3ft), 2m (7ft) and 3m (10ft). Lengths outside the standard range are made to order in our factory. Wire gauge: 30AWG.
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.
Customization Service
Because we are the factory, customization is straightforward: non-standard lengths, different jacket materials, specific polarity or breakout wiring, and compatibility programming for particular switch brands are all routine work for us. Small trial orders are accepted so you can verify quality before scaling up.
How We Ship
Most orders travel by international express and arrive within days; palletized freight by air or sea is used for volume orders. If you prefer, we ship on your DHL, UPS or FedEx account, or deliver to your appointed agent in China for onward consolidation.
Our Testing Process
Production samples and every outgoing batch pass through bit-error-rate measurement, temperature verification and plug-in compatibility checks on mainstream switches and routers. Because we are the manufacturer, any issue found in testing is fed back to the production line immediately instead of being passed on to customers.



