Cisco QSFP28-100G-BX20-U Compatible 100GBASE-BX20 BiDi QSFP28 1291nm-TX/1311nm-RX 20km DDM LC SMF Transceiver

Recommended for companies looking for high-performance network solutions, we used this 100G QSFP28 BIDI to update our network infrastructure, and QSFPTEK did a great job in quality control. You can clearly feel that the quality of the product is rugged and durable, which has greatly improved our network performance.

This 100G optical module is fantastic! It performs really well, is super fast at transmitting data and has a very long supported distance, which is perfect for my data centre. It's really easy to install and works great with the other equipment, with no issues at all.

Purchased 4 pairs of 100G QSFPTEK BIDI 20km modules, these modules are very stable and have been tested by us with low BER and packet drop rates, making them a good choice for high load scenarios like ours.

The 100G modules are robust and provide consistent performance as well as reliability for the high bandwidth and high traffic requirements of our networks. Our modules work primarily in data centers, which rely heavily on network reliability, and this 100G QSFP28 BIDI module proved to be more than adequate for our network environment.

I purchased two QSFP28 BIDI modules, before purchasing I confirmed the product parameters with customer service and it was the same as what they said, after I received the modules and tested them, they could seamlessly connect into my network system.

It is an unfamiliar brand to me, but they seem to have cooperated with many well-known brands, and the testing laboratory looks more professional, so I thought about giving it a try. Unexpectedly, when I received the modules, the packaging was decent and product was of good quality. Used to connect two Cisco switches, got 100gig and so far with no complaints. This is a good product at an affordable price, I might buy it again.