400G DAC QSFP112/OSFP56/QSFP-DD Cable丨C-LIGHT

400G DAC

The 400G DAC high-speed cable independently developed by C-LIGHT complies with IEEE 802.3ck/cd/bj/by in terms of communication protocol, SFF-8636 in terms of interface protocol, QSFP-DD MSA in terms of packaging protocol, and the product transmission distance is between 0.5m and 3m. 400G DAC high-speed cables are mainly used in data centers, enterprise networks, and service providers. 400G DAC high-speed cables are compatible with switches from more than 100 brands. With 15 years of experience in the optical communication industry, C-LIGHT is able to provide spot supply and customization services, and is committed to providing original after-sales services to help customers reduce operating costs.

3-year warranty Long term maintenance

Technical Support Professional free technical guidance

100% detection Each module is 100% tested

Spot stock Always in stock, short delivery time

Technical Support

Product Details

Form Factor	Part No.	Fiber Type	Data Rate	Wavelength	Distance	Connector	Case Temperature	Note
400G QSFP112- 400G QSFP112	CLQ112-Q112CU-0.5~2	Copper	400G IB	Cable	0.5M~2M	28AWG	Com./Ind.
400G QSFP112- 2x200G QSFP112	CLQ112-2xQ112CU-0.5~2	Copper	400G/200G IB	Cable	0.5M~2M	28AWG	Com./Ind.
400G OSFP112- 400G OSFP112	CLO112-O112CU-0.5~2	Copper	400G IB	Cable	0.5M~2M	28AWG	Com./Ind.
400G OSFP112- 2x200G OSFP112	CLO112-2xO112CU-0.5~2	Copper	400G/200G IB	Cable	0.5M~2M	28AWG	Com./Ind.
400G OSFP56 - 400G OSFP56	CLO56-O56CU-0.5~ 3	Copper	400G IB	Cable	0.5M~3M	28AWG	Com./Ind.
400G QSFP-DD- 400G QSFP-DD	CLQD4-QD4CU-0.5~ 3	Copper	400G IB	Cable	0.5M~3M	28AWG	Com./Ind.
400G QSFP-DD - 2X 200G QSFP56	CLQD4-2Q2CU-0.5~3	Copper	400G/ 200G IB	Cable	0.5M~3M	28AWG	Com./Ind.
400G OSFP56- 2X 200G QSFP56	CLOSFP4-2Q56CU-0.5~3	Copper	400G/ 200G IB	Cable	0.5M~3M	28AWG	Com./Ind.
400G QSFP-DD-2X 200G QSFP56	CLQD4-2Q56CU-0.5~3	Copper	400G/ 200G IB	Cable	0.5M~3M	28AWG	Com./Ind.
400G QSFP56- 2X 200G QSFP56	CLQ4-2xQ56CU-0.5~3	Copper	400G/ 200G IB	Cable	0.5M~3M	28AWG	Com./Ind.
400G QSFP-DD-4X 100G QSFP56	CLQD4-4Q1CU-0.5~3	Copper	400G/ 100G IB	Cable	0.5M~3M	30AWG	Com./Ind.
400G OSFP56- 4X 100G QSFP56	CLOSFP4-4Q56CU-2	Copper	400G/ 100G IB	Cable	0.5M~3M	30AWG	Com./Ind.
400G QSFP-DD-8X50G SFP56	CLQD4-8SCU-0.5~ 3	Copper	400G/ 50G	Cable	0.5M~3M	28AWG	Com./Ind.

400G DAC is a direct high-speed cable used within data centers that supports a data transfer rate of 400GB per second.

400G DAC is currently the mainstream and widely deployed high-speed interconnection solution within ultra large scale data centers and AI computing clusters.

400G DAC is a cost-effective physical cable used for very short-reach connections (typically ≤3 meters). It directly links equipment such as servers and switches, serving as the backbone for internal data center interconnectivity.

400G DACTechnical Core
It features a passive design requiring no external power and utilizes PAM4 signal modulation. Employing common form factors like QSFP-DD and OSFP, it achieves a 400Gbps data rate through 8 channels.

400G DAC Core Advantages
Its primary benefits are extremely low cost and minimal power consumption (<0.1w), coupled="" with="" ultra-low="" latency.="">

400G DAC Application Scenarios

It is primarily used for interconnecting servers and switches or between switches within data center racks. In AI clusters, it is also extensively deployed for connections between GPUs and switches.