ODROID-XU4 Single Board Computer with Quad Core 2GHz A15, 2GB RAM, USB 3.0, Gigabit

I'd like to point out that even though I do have several "Cons" in the list below, they are really nit-picky things and warnings to other uses than anything that takes away from greatness of the board. Pros: - Faster than Raspberry Pi. - More RAM makes smoother user experience. - eMMC option available if you need faster storage. Cons: - No built-in Wifi, don't forget to get a dongle. - Not drop in compatible with Raspberry Pi (don't try to use Raspberry Pi OS images, they won't work). - ODROID makes a LOT of different boards and OS versions are often different between them. If you accidentally grab the wrong OS absolutely nothing will happen when you plug it in (which led me on a 2 hour trip through confusion and sadness). - Fan cycling on and off is a bit annoying (may have to try to find a way to make it just stay on).

Got the board quickly and in great condition. It runs much smoother and quicker than any pi I've owned and the Ubuntu images are quite easy to install and configuring ROS on it was a breeze and it works effectively so far. I've seen complaints about the fan cycling on and off and I've witnessed this but it's not really an issue but in the documentation they've explained what it's tired to and even several ways to configure it differently. I used it to build some really cool drones/uavs and I recommend it for anyone looking fo a companion computer for their autopilot.

The machine itself is on the right path. It is fast. The software on the Ubuntu side is defective. When you go to open up the software and place a password it doesn't allow it. Had to hack it slightly to make it work. I created an error with a 3 letter password. It asked you to try it again and then it worked. The switch between EMMC and SD Micro Cards is also slightly badly made. You have to use an ohm meter for it to connect and work. Once it is working the machine is excellent. It is very fast compared with a Raspberry Pi 3B. The guy that wrote the software suggests it is a defect in the SD or EMMC card not his software. If that were the case my hack would not have worked. There is a simple error in the coding somewhere. It could use at least one more USB port. Two of the USB ports are 3 and one is 2. Personally I dislike the Ubuntu move to panels instead of the desktop. But I am old and remember excellent software of the past. The Pixel on the Raspberry has a configuration file that allows you to shape the desktop on a HDMI television. This software does not. That means you have to use the VGA side if you want to use a TV monitor. I suggest a kit that would allow you to develop a laptop using this card as a source. Simply because it is feasible to add an Solid state hard drive to this unit. That the arm processor is not meant to be used as a windows machine is a disappointment. I suggest Windows needs an operating system that will work on any processor. Then the windows 10 software would be universally accepted by everyone. 10K to 40K to upgrade is not feasible for a lot of small business owners. They need to develop software for the poor as well as the rich.

Best one yet! I got this to run a retro gaming system. Not only does it exceed my expectations, but WOW! It runs N64 game with ease! Not one single issue. Graphics are great for the 1980s and 90s games I am running. Just wish it had built in WiFi, but other than that, AWESOME! If you are looking for a board to run Retropi perfectly, this is it. I loved the Raspberry Pi 3 and was thinking 3+ for my next build, but so glad I found the Odroid XU4 instead.

Great little computer. Fast and low powered. I have it running OMV server with 24GB disk array connected via USB-3 for a home office backup server. Many seem to have replaced the fan on this unit, but I have not trouble with the stock fan. Mine is quiet and appears to do its job quite well. I have several SBC kicking around (Rasp PI 2, 1, and zero, Banana PI, UDOO quad, RK3288, and ODROID-XU4.) The ODROID-XU4 is my favorite to date.

I don't write too many negative reviews but I really hate this overpriced trash. What benefits does it have over a Raspberry Pi 3? I has an extra 4 core processor and more memory. It doesn't mean anything when the processors don't work simultaneously. I'm no expert with Linux/Unix based systems but I seem to be able to fly through anything on a Pi. There are no good supported programs for this. I tried Kodi and it seems to freeze when it switches between processors which is extremely annoying, especially on top of the loud, high pitch whirring of the cooling fan. Don't even bother with Emu's. What a joke. Can't recommend.

Purchased this for a Android entertainment center, absolutely love it. Wish ameridroid or hardhernel offered other components on their storefront. Setup to a running 4.4.4 kitkat was about an hour, no issues with my large TV (only had to change the H-Fill to option 2) Boots fast, quick response, multiple input options, ODROID/hardkernel have a "OTA" upgrade method (though that did screw up on my and had to re-flash.) I will be getting more of these for relatives.

I'm kind of disappointed. What's bad:Nearly half of the display is blank when I use the HDMI to DVI-I converter, and same for the HDMI to VGA converter. I had to plug the HDMI from the oDroid to my XBOX One, and my Xbox One to the HDMI to DVI-I, so that the entire display would be present on my monitor. It is not compatible with my Waveshare 4" inch HDMI monitor. That monitor is for the Raspberry Pi 3, and it also works with my desktop PC. I was hoping to do a nice portable system with the oDroid, but I can't until I write a driver for it. I have ONLY been able to get emulation distributions to boot. I have tried a few releases of Ubuntu with no luck in getting them to boot. I have a feeling that they will boot if I had put them on an eMMC module, which I do not have. I think there is a way to fix this, but I haven't had enough time to find the files, other than the U-boot file, to edit so that everything runs on the microSD. The Good: The oDroid IS a lot more powerful than the Raspberry Pi 3, and it should be at twice the price. I was able to run Lakka, and Botecera Linux (it's like RetroPie). Nintendo 64 games look amazing on this. I was able to set the resolution to the maximum available, and most of the games ran perfect. The games that did not were games that emulators have problems with, it wasn't due to the hardware. I've SEEN other people run Dreamcast and PSP games well, but did not try those myself. Overall: I'm not a fan of it yet: It plays a few game consoles better than the Raspberry Pi 3 is capable of, which it should, since it costs twice as much. A lot of operating systems are hard to start up, at least if you don't have the eMMC module (like me). I do not like that it can only boot from eMMC, or microSD. With Lakka, I was able to make the MBR on the microSD, and set the root file system on a USB 3.0 card. So, there are ways around being stuck with having to run everything from one of the other slow options. eMMC and microSD is slower than USB 3.0, so I'm surprised that this system does not include an option to boot from that medium. Right now, I can not do as much with it as I can my Raspberry Pi 3. The oDroid is not compatible with a lot of displays, and I mean A LOT. It is primarily made to be only used with HDMI televisions, and specific tablet sized monitors, which are not small enough for a lot of possible projects. I'm going to try to write some display drivers for the kernels on this thing, so that I can use it in different projects. But I don't like it as much as the Raspberry Pi 3. Finding the operating systems that are available for this thing is not easy, and I still haven't been able to make Ubuntu boot. I have only been able to find Ubuntu, ARCH, LAKKA, and Botecera. I could not find Android for this, and I have not tried ARCH on it, since that one already takes time to set up. I wouldn't recommend this, unless you are only interested in using it on a regular HDMI television, and you intend on getting the eMMC module (which is not as fast as USB 3.0, and more exensive). If you want to do projects, you need to be a Unix wizard, know programming, and know electrical engineering. You have to write your own drivers, and need to know all of the ins and outs that you can manipulate with this thing. There is NOT a lot of development happening with this device. It is a better device than the Raspberry Pi 3, but to do more with it than play with it on the tv, you have to develop for it. I might have fun doing this, and might come to see this as a cool feature. But right now I can't do much with it.