40GBASE-SR4 QSFP+ Optical Transceiver Module Compatible with Cisco QSFP-40G-SR4 Meraki MA-QSFP-40G-SR 40G QSFP+ SR4 850nm 100m DDM MTP/MPO-12 MMF 4 Pack

Finding cheap optics that actually work is not always an easy endeavor. I have purchased multiple brands of optics for multiple switches by different vendors, and even with the “secret” command to enable 3rd party transceivers, they still don’t work.Since I had a chance to test out this brand, I jumped at it and requested the 40G QSFP+ (Arista) and figured I’d give it a shot.The optic arrived very well packaged in a blister pack tucked away in a box, simple but effective. I popped it in my Arista, changed the speed to 40g on my port and boom! I was up and running.I’ve included snapshots of all the applicable “show” commands for the transceiver but as a note, the “show interfaces eeprom” command outputs a lot of lines so that is in 2 picsPros:• Cost• Shipping time (arrived next day)• Usability/interoperability• SpecsCons:• None so far, will update once I use the full 40g lane*I received this free as part of the Vine Voices Review program. My reviews and opinions are unbiased, honest and are never coerced from the vendor*

This was my 9th Opstran module. I have a 100gig switch that also supports lower speeds, and I put this in for connections to 40gig NICs in some of my hosts where a 3 foot DAC wouldn't work. Great choice, reasonable price, and consistent quality from Opstran.

This transceiver module worked on the first attempt in the Arista switch where installed. Testing resulted near 40Gbps without any errors or retransmits.

Cheap transceiver with solid build quality. Fired right up in our Juniper switch and established link. I'll update this review if it ever fails!

Good quality and size. Price point is better than branded versions. Works well and have had no issues this far.

As a network administrator, I'm always on the lookout for products that can streamline my workflow and provide reliable connections. This module caught my eye because of its wide compatibility with various networking equipment and its ability to transmit data over short distances using multimode fiber optic cables.In my experience, this product is particularly useful for upgrading 10G networks to 40G, which has been a challenge in the past due to the limited availability of compatible transceivers. With this module, I was able to upgrade my network without having to replace any existing equipment.

Enhancing our network setup with this optical transceiver has streamlined operations significantly. Its compatibility and performance have met all our expectations, facilitating better connectivity and network stability, which is critical in our high-demand environment.

worked well in juniper switch, not many 40gb ports to test from but picked up speed well, good value for money

For the price these transceivers are exceptional. As far as I can see there’s nothing that even approaches these Opstran optical transceivers on Amazon. Cheap, yes, in as much as they don’t cost very much, but certainly not cheap in quality.This is a plug and play device and there wasn’t any installation procedure. It worked right from the off. If I had to have a wee niggle it would be in response to a statement in one of the pictures in the listing, “Fully compatible with nearly all Arista devices”. How do you know/find out if your device is one of the incompatible ones? If there are only a few devices that fall into this category surely, to eliminate uncertainty, a list of these devices should be made available?As I said, it’s only a minor issue! Not one to put a buyer off. If you’re one of the unlucky ones that has an incompatible device it can be returned for a full refund.