D-Link DEM-CB100S 10GbE Direct Attach SFP+ Cable
The DEM-CB100S is a 100cm 10GbE Direct Attach SFP+ cable engineered for high-speed, short-distance connectivity between compatible D-Link switches. This passive SFP+ twinaxial cable delivers 10 Gbps transmission with minimal latency and power consumption, making it ideal for intra-rack deployments, adjacent rack connections, and switch stacking applications. Unlike active alternatives or copper-based 10GBASE-CX4 solutions, the DEM-CB100S offers a cost-effective, low-power solution for data center and enterprise network environments requiring reliable 10G connectivity.
Key Features
- 10 Gbps transmission speed with SFP+ connectors for universal compatibility
- 100cm (1 meter) length optimized for short-distance, high-speed connections
-
Direct Attach Copper (DAC) technology — passive design with zero power consumption
- Low latency performance ideal for switch stacking and intra-rack networking
- Compatible with D-Link 10GbE switch series for seamless network expansion
- Twinaxial shielded construction for signal integrity and EMI protection
- Cost-effective alternative to 10GBASE-T and active optical cables
Technical Specifications
| Specification |
Details |
| Manufacturer |
D-Link |
| Model Number |
DEM-CB100S |
| Cable Type |
Direct Attach Copper (DAC) — Passive SFP+ |
| Connector Type |
SFP+ (Small Form-factor Pluggable Plus) |
| Cable Length |
100 cm (1 meter) |
| Data Rate |
10 Gbps (10GBASE-CU) |
| Transmission Distance |
Up to 100 meters (passive copper) |
| Power Consumption |
None (passive cable) |
| Cable Construction |
Twinaxial shielded copper |
| Operating Temperature |
0°C to 55°C |
| Storage Temperature |
-10°C to 60°C |
| Compatibility |
D-Link 10GbE switches with SFP+ ports |
Frequently Asked Questions
What is a 10GbE Direct Attach SFP+ cable used for?
A 10GbE Direct Attach SFP+ cable connects compatible network switches and servers for high-speed data transmission over short distances. The DEM-CB100S is ideal for switch stacking, intra-rack connections, and adjacent rack deployments where low latency and cost efficiency are priorities.
How does the DEM-CB100S compare to other 10G cable options?
The DEM-CB100S passive DAC cable offers significant advantages: zero power consumption compared to active cables, lower cost than 10GBASE-T copper, and minimal latency. It's perfect for data centers where energy efficiency and performance matter. For distances beyond 100 meters, active optical cables or 10GBASE-T would be more suitable.
Is the DEM-CB100S compatible with my D-Link switch?
The DEM-CB100S is compatible with D-Link 10GbE switch series featuring SFP+ ports. Check your switch documentation to confirm SFP+ port availability. This passive SFP+ twinaxial cable works with any standard SFP+-equipped networking device.
What are the advantages of passive vs. active DAC cables?
Passive Direct Attach Copper cables like the DEM-CB100S consume no power, generate no heat, and cost less than active alternatives. They're ideal for short distances (up to 100m). Active cables support longer distances but require power and are more expensive — choose based on your deployment distance and budget.
