800G DAC Cable (OSFP & QSFP-DD) — Direct Attach Copper Cables
The 800G DAC cables deliver cost-effective, ultra-low-latency direct-attach connectivity for high-density data centers and HPC environments. Compatible with common 800G form factors (OSFP and QSFP-DD800), our cables are factory-tested and supplied with EEPROM programming and electrical test reports on request.
Standard lengths include 0.5 m, 1 m, 2 m and 3 m, with custom lengths and breakout configurations available for migration or aggregation scenarios. Ideal for short-reach spine-leaf links, server-to-ToR connections, and dense aggregation fabrics, Fibrecross 800G DACs provide predictable performance, simple deployment, and competitive volume pricing.
| Part Number | Product | Data Rate | Length | Temp |
|---|---|---|---|---|
| GL8H-DQDY1xxxxM | 800G QSFP-DD to QSFP-DD DAC | 800Gbps | 0.5~3m | 0~70 ℃ |
| GL8H-DQDY2xxxxM | 800G QSFP-DD to 2*400G DAC | 800Gbps | 0.5~3m | 0~70 ℃ |
| OP8H-DPxxMxxWG | 800G OSFP to OSFP DAC | 800Gbps | 0.5~3m | 0~70 ℃ |
| OP8H2X-DPxxMxxWG | 800G OSFP to 2*400G DAC | 800Gbps | 0.5~3m | 0~70 ℃ |
High-performance computing environments
Data center interconnects
Switches, servers, and routers
Telecommunication and wireless infrastructure
- Compatible with IEEE 802.3bj and IEEE 802.3cd
- Supports aggregate data rates of 800Gbps(PAM4)
- Optimized construction to minimize insertion loss and cross talk
- Pull-to-release slide latch design
- 28AWG through 30AWG cable
- Straight and break out assembly configurations available
- Customized cable braid termination limits EMI radiation
- Customizable EEPROM mapping for cable signature
- RoHS compliant
FAQ About 800G Direct Attached Cables
The 800G DAC cable offers ultra-high-speed data transmission and low-latency interconnects, making it ideal for cloud computing and AI-driven data centers.
We can accept small quantity,even 1pc. MOQ:1pc
Key benefits include:
Low power consumption (passive cables don’t require power)
High reliability due to fewer failure points
Cost-effective for short-range connections
Minimal latency, ideal for time-sensitive applications
Plug-and-play simplicity
Common types include:
800G QSFP-DD to QSFP-DD DAC cables
800G OSFP to OSFP DAC cables
Breakout DAC cables, such as 800G QSFP-DD to 2x400G QSFP-DD or 800G to 8x100G options
These support different switch and device port types for flexible deployment.
800G DAC cables typically support lengths up to 0.5 to 3 meters, depending on the gauge and signal integrity requirements. For longer distances, Active DAC (AOC) or optical transceivers are recommended.
Consider the following:
Port type (QSFP-DD, OSFP)
Required cable length
Passive vs. active cable type
Application (standard or breakout)
Compatibility with switches/servers
