Works well in Dell S4112T QSFP slot with Dell compatible 10G SFP+ module after issuing interface breakout map 10g-4x configuration command. The support assistance from FS was excellent.

I wanted to use the converter module to achieve Mellanox 40Gbps to Ubiquiti 10Gbps link. But I didn’t find “Mellanox” option on the buying page. I talked with the FS guys online and asked whether they could offer some supports. The guy checked my devices’ datasheet, and confirmed the Mellanox supported 40G to 4x 10G. He told me I could use customized service and marked Mellanox compatible on my order. Receiving his confirmation, I knew I could use my old 10G DAC cable to connect the 40G converter module and my 10G Ubiquiti. Then I made an order of customized converter module. I quickly installed the module on my Mellanox, and plugged the 10G DAC cable into it. The packet from the Mellanox to Ubiquiti was stable and no loss.

My 40G Cisco Nexus switch accepts the module. And the module works with my Cisco SFP+ modules to transmit data to the 10G firewall smoothly.

FS guys are always available to help and answer my questions. Thanks for their recommendation, the module helps us achieve 10Gbps.

This is my first purchase at FS.COM and I just want to test first. But I was surprised by the quality and service. I will buy some products here in the next time.

After received, it was plugged into the device and tested. There is no quality problem. The module packaging is also very good. The Customer Service response is fast, logistics speed is also good. I will buy some products here in the next time.