The capture card will be promptly recognized by OBS, and the software will begin functioning without delay. Before you plug in any wires, check to see that they are in excellent condition. Simply plug it in and start using it; there's not much more to it than that. Additionally being compatible with Mac is a huge benefit given that the majority of capture cards are designed only for users of windows operating systems. This capture card offers an excellent value for the money, particularly owing to the card's dependable performance. The installation was straightforward, and all that is required to begin recording is to go into obs and make a few selections from the drop-down menus. Even though there are no instructions provided on how to correctly capture the audio, it was not difficult to find out how to do so.It works great with the Switch and has good quality overall. Very easy to set up with OBS.Okay, so I bought this because it was recommended by a Youtuber who had a similar streaming set-up to me (he streamed Xbox from his Dell laptop, which is exactly what I wanted to do). Since it was a plug and play device, it really appealed to me because I'm technologically challenged and OBS was hard enough to learn on its own, I didn't want to get a capture card that had its own software that I'd have to completely relearn. And since the Mirabox was reasonably priced, I sprang for it.The following is all based off of my experiences streaming from my Xbox:So, when you first get it, know that it comes with only one 3.0 HDMI cable. It doesn't include any HDMI cables, so make sure you have your own (I recommend 4K HDMI cables for streaming).Know that this device only streams in 32bit, which means if you're using OBS, you can only use OBS Studio, not the newer Streamlabs OBS as I had mistakenly thought.Another thing: I thought I'd need an HDMI switcher (or get a monitor with multiple HDMI slots) since I was streaming from my console, but I didn't! Because of the device's pass-through, once you plug in the capture card to your console, computer, and monitor, not only will it appear on your computer to show what you're streaming, it pops up on your monitor too (which is super important to me because I stream Overwatch and playing it on a smaller screen than usual drove me nuts).The capture card itself is a little glitchy, I won't lie. Depending on how old your laptop/desktop is (mine is 5 years old), it might take a restart or two to get the capture card to show up in devices on OBS/for the OBS window to even actually display what you're seeing on your monitor. And this might be due to my current wireless connection to my internet (and the fact that I'm also streaming on my console, not just my computer), but there does seem to be about 15-20 second latency in my actual stream. But because of the capture card's price and simplicity, I feel good about it overall!First thing. This product works. Its a capture card, it lets you record, stream all that jazz. It capture at 1080 just fine.Now there is definitely some issues. Primarily it is prone to overheating and glitching out. These issues do not happen consistently and are not at all as scary as they sound, its more just inconvenient. While I stream, usually switch games. About 1/3 times I'll have an issue will the capture will freeze. The game still run on my monitor but the audio cuts out and my software cant capture video. I think this is mostly a limitation of the usb connection for transfering the data from the card to your computer, but its a simple fix. Just unplug the usb port and plug it back in then reset rhe media source.And again thay only happens every now and then, but its dtill annoying.All in all this is a good product for the price, worth it considering how affordable it is compared to its competitors.LINUXLinux Ubuntu 16.04.6 LTS desktop computer (kernel 4.4.0-127)Core i7-860 CPUGigabyte GA-P55M-UD4 motherboard (only has USB 2.0)My camera: Nikon D750 or Olympus EM10mk2 both produce 1080p/60fps HDMI signal.I was surprised the MiraBox-HSV321 works with my Linux desktop computer from 2011 which only has USB2.0 and no USB3.0 at all. It worked right out of the box and no driver to install.How is this even possible when USB2=0.48Gb/s while HDMI_1080p30=1.58Gb/s?Using a program called "usbtop", I was able to determine the transfer rates:ExternalHD USB3.1 read: 31MBytes/sec (My motherboard's real-world maximum USB2.0 throughput)Logitech C200 (640x480/30fps) webcam: 31 MBytes/sec (Constant rate, regardless of video content)MiraBox-HSV321 HDMI (1920x1080/30fps): 2.4-5.8MBytes/sec (Rate are lower when video has less motion)Obvious it uses compression and through this USB2.0 connection (which I later found out was encoded as MJPEG), I could get 1920x1080p feed coming from my Olympus EM10mk2 or Nikon D750 camera. Using OBS Studio, I measured only 21fps (not 30fps), which was done by recording a video of a stop watch, examining the file and each frame one-by-one (1.0 sec span had only 21unique frames). I also measured a 0.24sec round-trip latency by having the recording include both stopwatch and the OBS Studio preview screen. This lag can cause audio minor sync issue; to fix this, I use my camera's microphone audio, streamed as HDMI audio, and not use audio from a headset directly attached to the computer.WINDOWS10On a ZenBook UX391UA with USB3.0 running Windows10, the MiraBox could get the full 60fps also at 1920x1080. Examining frame-by-frame, there were no duplicate frames and all 60frames within 1.0 sec were unique. In this case, latency was down to 0.20sec. (The same experiment shows my Elgato-HD60S with 0.14sec lag.)Because MiraBox acts like a webcam (USB V4L2 device on Linux), may other applications can use it such as Skype, Zoom Teleconference, Ring Central Meetings, all on either Windows10 or Linux Ubuntu. (My Elgato-HD60S is only available on Windows and works with Zoom and RingCentral but not Skype.)RASPBERRY PIWhile both Raspberry Pi 3b and Pi4b can capture it as 1080p-25fps MJPEG saving to SDcard with less than 1% CPU, re-encoding to H.264 is only usable with the Pi4b hardware encoder. The MiraBox will drain quite a bit of power from your Raspberry Pi. For me, 5.0volt+3.0Amp power supply attached to my Pi was sufficient.PACKAGINGThe MiraBox package came with a 55cm/23in USB-A male to USB-A male cable (not common), the MiraBox itself and a manual which recommend installing "PotPlayer" for Windows. However, it does not come with any HDMI cables.I compared the video output from this device with a HDMI capture box from Magewell (twice the price). I found colours to be oversaturated when using the Mirabox compared to the Magewell, but again, it's half the price. If you're using the Mirabox with OBS you can do some colour correction.Apart from non-realistic colour rendering, the other thing you don't get with these non-brand "brands" is any tech support. I went looking for the manufacturer's website to see if there were any firmware updates. but there IS no manufacturer's website. If that kind of thing is important to you, you should consider buying the more expensive ElGato or Magewell boxes that actually have aftermarket support.I am not a fan of the non-standard USB3 type A port. Why not use a micro B female port (as is on every portable USB hard drive)?On a Mac this device is recognized as both a video and an audio source. Using OBS, sometimes I have to deselect and then reselect if I connect it after the computer has already started up. Not really an issue, just something to be aware of.Also tested with Zoom, which recognizes the device without any issues.I saw one review that said it overheated and failed, so I left this one powered up, with a gopro camera connected, connected to a computer running OBS, for a couple days. It does get warm, but so far continues to work fine. Definitely leave some air space around it, and don't lay anything on it. If you're going to run it for long periods of time, or if you're using it in a room that's not well-ventilated, it wouldn't be a bad idea to stick a passive heat sink to the case to keep it cooler.If you're looking to use this to record or livestream your game, I would advise that you just stick with buying an Elgato or AverMedia Capture devices. It will save you headaches of trying to figure out how the software that comes with it works or figuring out how your computer is not detecting the capture device or syncing your audio/video because of the latency/lag this device introduces to your camera.There's also the $30-$40 USB capture card that is going around - I tried that and it works with less latency/lag than this device!It was working well the first time, then I wanted to switch from ps4 to switch. the device was long and tedious to set up again. After a week or 2, I had crackling and popping noises coming from streaming device, I tried many things, and in fact it was really only the Mirabox that wasn't working correctly anymore. By the time I had try many things I couldn't resend it so. That's it, stuck with a video capture that can't do his job ;/I would suggest to people to buy higher quality devices if at least it won't do what happened to me. One of the things that would have helped, would be if we could change the default sample rate in bits that the Mirabox takes, but we can't touch that part, so once it's does the problem, you are stuck with it :)