Cisco QSFP-100G-SR4-S Compatible 100GBASE-SR4 QSFP28 850nm 100m Optical Transceiver Module

Very easy to set up product compatibility, and QSFPTEK box together with the brand optical module, compared to the brand optical module, the price is quite a bit lower, is the right choice.

These modules work just as Cisco but only at a fraction of the cost！Recommended for cost and quality.

Tested these modules on my Mellanox 25g cards – passed all specs and worked perfectly!

I've been using the products in the server room for two weeks now, and everything’s working fine. My order was in stock, so I received it just four days after placing it. However, one of the modules didn't match the model I ordered, so I had to wait another three days for a replacement. Despite the small hiccup, overall, their service and products are good. They could probably improve the shipping process a bit though.

Purchased together with OTN devices, the QSFP28 ER4 is a suitable product for long distance transmission of 40km. the engineers of QSFPTEK have provided us with similar success stories, as well as the whole list of products and their technical specifications. I would like to compliment QSFPTEK on their technical documentation, they have done a great job in this area.

Very good module, works great on WS-N9K-C93108TC-EX switch!

It is also very cost-effective among the modules that have been purchased, and QSFPTEK's modules are very cost-effective and affordable. It can also perform quite well in complex network environments. If you need a high bandwidth solution, then try using QSFPTEK's products.

I looked at many of the parameters on the website and compared different other vendors before purchasing, and QSFPTEK came out on top in a variety of stats, with relatively excellent product quality and a better price/performance ratio, as well as a slightly lower price point than the other vendors. If you want to choose a reliable and cost-effective networking solution, then QSFPTEK is a good choice.

After installing this QSFPTEK 100G SR4 module, I can say that the performance of this module is enough for us to carry out large-scale data transmission. From the stability and quality of this module, there are very few packet drops or interruptions during the mission, which has greatly improved our network efficiency.

The overall shopping experience was good, the website was easy to navigate, I was able to quickly find the products I needed, and I was able to look up some product knowledge. The account manager responded quickly and helped me find everything I needed!