Every Module works fine without any error.

The connect does look good. We appreciate your ability to get what we need and how capable your company is.

Paired with the SMF cable recommended in the page. Their team always replied within 24 hours, and they were really knowledgeable in their responses.

400G ist tatsächlich sehr schnell. Die Qualität und Leistung des 400G-Moduls von FS sind ebenfalls großartig und ich werde es meinen Freunden und Kunden empfehlen. Ich werde auch mehr Produkte in FS kaufen.

At 400 GB speed, it really reduces the amount of time needed to copy photos from my iphone the SAN on the other side of the data-center all over a SMF pair! Would recommend ;-

We purchased this QSFP-DD optical module here and one 400G switch from another vendor. The module has very good packages and has been delivered quickly, but our network switches are on the delivery way...