Optical module
RealSea’s 400G QSFP-DD Direct Attach Cable (DAC) is a 8-channel parallel passive copper product for storage, data center and high performance computing connectivity. It offers 8 independent data transmitting channels and 8 date receiving channels via copper cable, an aggregate data rate of 400Gbps over 3 meters transmission can be achieved by this product.it’s high performance, cost effective I/O solutions for LAN, HPC and SAN. The high speed cable assemblies meet and exceed 400Gigabit Ethernet, InfiniBand EDR /HDR and temperature requirements for performance and reliability
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low cost and high reliability
8-Channel Full-Duplex Passive Copper Cable Transceiver
Support data rates : 56Gb/s (Support 28GBaud PAM4)
Maximum aggregate data rate: 200Gb/s (4 x 50Gb/s)
Low crosstalk
I2C based two-wire serial interface for EEPROM signature which can be customized
Compatible to IEEE802.3cd
Compatible to 400GBASE-CR4
Compatible to InfiniBand architecture
Compatible to QSFP-DD MSA
Compatible to RoHS Compliant
General Specifications
Parameter | Symbol | Min | Typ | Max | Unit |
Channel Data Rate | DR | 53.125 | Gb/s | ||
| Number of Lanes | 8 | Channels | |||
Modulation format | PMA4 | NA | |||
| Transmission distance | 3 | m | |||
Operating Temperature | TC | 0 | 70 | ◦C | |
Storage Temperature | TSTO | -40 | 85 | ◦C | |
Input Voltage | VCC | 3.14 | 3.30 | 3.46 | V |
| Product attributes | |
Brand | Realsea Technology |
Part Number | QSFPDD-400G-CU1M |
Data Rate | 400Gbps |
Connector Type | QSFPDD to 8QSFP56 |
Wire AWG | 30AWG |
Cable Length | 1m (3.28ft) |
Cable Type | Passive Twinax |
Minimum Bend Radius | 23mm |
Power Consumption | <0.5W |
Jacket Material | PVC (OFNR) |
Commercial Temperature | 0 to 70°C (32 to 158°F) |
Warranty | 3 year |
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