JVA02

I guess I got it on sale but it's a great capture card. Compares to my elgato, I use them side by side and for 1080p there's no difference. No lag so perfect for live streaming with a dslr

This is a USB 3.0 device that captures video from an HDMI source as either compressed MJPEG or uncompressed YUV 4:2:2. It will capture up to 1920x1080 at 60 fps. Although it's a USB 3.0 device, if you don't use the correct USB 3.0 cable it will operate in USB 2.0 mode. Running in USB 2.0 mode will only allow capture to MJPEG instead of the more desirable uncompressed 4:2:2 YUV because there simply isn't enough USB bandwidth.The device reports itself over USB as "Magic Control Technology Corp. J5-USB Device." It uses UVC, so it doesn't need any drivers installed to work, which is nice.I did a test with my Nintendo Switch, and sure enough it captured the Switch at 1080/60p while docked. YUV mode looked perfect of course, but the quality is actually pretty good even in MJPEG mode.I tested it on both Windows and Linux. It worked on both, but the connection was really flaky with my Lenovo laptop. I tried both the USB-A 3.0 and USB-C ports. I had to plug it in and unplug it a few times before it would be detected as a USB 3.0 device and expose the raw YUV capture option. And yes, I used the USB 3.0 cable that came with it, along with two others I have. I even tried plugging a USB-C power adapter into the power port on the device, but it made no difference. I believe that's for power delivery only in case your laptop only has one USB-C port.I believe the device is reporting its capture capabilities to the operating system based on the video source of the thing that's plugged into it. This is fine, but depending on what's plugged in, you may have problems. For example, I was able to capture some 720p footage from my SNES Classic at 60p, and it worked perfectly although the Switch at 1080p worked intermittently.I do just want to be clear that when it works, it does actually capture pretty well.Despite the connection annoyance, the real problem with the product is a lack of HDMI pass-through. That makes it unsuitable for streaming gameplay footage. Monitoring the capture output on your computer screen isn't a solution as the capture and compression introduces too much lag. You could use a separate HDMI splitter, but now you're wired up to two devices when better alternatives to this situation exist.Bottom line: when the product actually works it does a decent job of video capture. However, that lack of latency-free HDMI pass-through is a non-starter for gaming. If you don't don't need zero-lag output, then this might just work for you!

When I tested it with my Nintendo Switch docked, it did indeed capture the Switch at 1080/60p. Naturally, YUV mode appeared flawless, but even in MJPEG mode, the quality is quite good. I put it to the test on Linux and Windows. It worked on both, although my Lenovo laptop's connection was rather shaky. Both the USB-A 3.0 and USB-C ports were tested. It took several attempts for it to be recognized as a USB 3.0 device and reveal the raw YUV capture option. Yes, I utilized the included USB 3.0 cable as well as two more ones I had.