Moduletek Limited has launched a new model DAC-QSFP-DD-400G-P-xxAWG-aa.aaM 400G passive DAC products, package QSFP-DD, 8-channel 50G PAM4 signals, transmission distance of up to 3 meters,  Moduletek Limited laboratory prototype testing of the product to facilitate a further understanding of the product's performance indicators and actual machine . The product prototype was tested in Moduletek Limited's laboratory to facilitate further understanding of the product's performance indicators and actual machine use.
1. Product Pictures
Picture of  Moduletek Limited's 400G DAC
Figure 1 Picture of  Moduletek Limited's 400G DAC 
2. On-line test
        Take DAC-QSFP-DD-400G-P-30AWG-1M as an example, and conduct on-board testing on Cisco C9500X-60L4D, Arista DCS-7060DX4-32-F, and Mellanox MSN4700-WS2FC respectively, and the tests are all normal, and the test results are as follows.
        Test results on Cisco C9500X-60L4D:
Recognition Results on the Cisco C9500X-60L4D
Figure 2 Recognition Results on the Cisco C9500X-60L4D

 LINK results on Cisco C9500X-60L4D
Figure 3 LINK results on Cisco C9500X-60L4D 
       Test results on Arista DCS-7060DX4-32-F:
Recognition results on the Arista DCS-7060DX4-32-F
Figure 4 Recognition results on the Arista DCS-7060DX4-32-F

LINK results on Arista DCS-7060DX4-32-F
Figure 5 LINK results on Arista DCS-7060DX4-32-F 
        Test results on Mellanox MSN4700-WS2FC:
Recognition results on Mellanox MSN4700-WS2FC
Figure 6 Recognition results on Mellanox MSN4700-WS2FC

LINK result on Mellanox MSN4700-WS2FC
Figure 7 LINK result on Mellanox MSN4700-WS2FC
        Moduletek Limited's 400G passive DACs are tested normally on mainstream switches with good compatibility, welcome to purchase.
        Moduletek Limited is at your service.
        If you have any questions about the above content, you can contact us by Email : web@moduletek.com