Table of Contents
Testing Network Bandwidth with iPerf
In this test, we connected our Dell Latitude 7490 laptop, equipped with a 1Gb network card, to one of the R2S LAN ports, and here are our results. According to our testing, we achieved throughput speeds of up to 923 Mbits/sec, which is excellent.

Testing CPU load
During our tests, we monitored CPU load while conducting a Speedtest via Ookla in the background on our Windows desktop PC, with htop running in console mode through SSH. We observed that one of the eight cores experienced a spike, reaching 100% utilization, and right after the test finished, it dropped to 0%.
Trying to run hardware flow offloading did improve throughput speed dramatically, but the CPU core performance remained pretty much the same. We conducted a thorough review of various tech assessments that performed similar tests on different low-end ARM-based hardware. Our findings confirm that it’s in normal range and should not present any issues as long as the board is adequately cooled. Having said that, if you come across a valuable tweaking solution or kernel patch that will lower core load, you are welcome to share it in the comments section.
Conducting a Speedtest with flow offloading disabled.


Where did you get the case? I’ve looked everywhere on AliExpress (well, not *everywhere*) but have not been able to find any suitable case or even a drawing for a 3d printer.
It’s not a perfect fit. You will find it on AliExpress. just search for “acrylic case orange pi 4a”.
Thanks for the tip but I can’t find the case under that name, also the pi4a has a whole other ports layout. Would you have a direct link?
The Orange Pi R2S Case is currently in production. If you were referring to the case for the RV Board, I’ve updated the article to include a direct purchase link from AliExpress.
I’m still looking for that case and can’t find it in your article? Can you just give me a link? Thanks
I’ll check with the company and get back to you with an answer in a few days, as it’s currently Chinese National Day.