Instruction: Generate an answer to the question by utilizing the information contained in the document.

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Question: Can this record Wii and Gamecube?
Document: The unit works very well and does just what I bought it to do - - record videos from my cable dvr.
I like how you don't need a computer to record. The videos come out in AMAZING quality! I recommend buying this product.
Bought this for my son as he wanted to use it to record his PS3 game play. He is very happy and had recorded few gameplay and uploaded to Youtube.
everything came as advertised good little remotenice interface.lots of optionsI record my direct tv sports highlights perfectly
Record, commentate, edit, upload. All consoles with composite in can be recoreded. One key feature it's missing is to livestream to twitch. Maybe on the Avermedia 3?
It is small, it records at a high quality, the menu is easy to use, my portable hard drive was compatible with it, operation is not difficult once set up. Basically all you have to do after set up is press the record at any time to begin recording gameplay and press it again when you are finished.
I bought this because I read and saw videos that it worked with the XBOX ONE HDCP problem, but no, every time I hit the record button I got a message stating I couldn't record because the video is HDCP, it did it for both the XBOX ONE and XBOX 360 using the HDMI ports.
The quality is amazing and the menu interface for the device is very easy on the eyes and easy to navigate. This device also has the ability to record commentary and it works very well just adjust the volume how you want and you are ready to go. I Cannot say enough good things about this device it ran perfectly when I do hours of recording.
But if you do not forget this vital step it should work flawlessly. One more thing to watch out for is that PS3 and PS4 have a special HDMI protection. This means that to record with this device and HDMI cables, you will have to find a work-around. There are several ways but I chose to buy an additional piece of hardware called an Orei HDMI Splitter for about $25.
All you need is the external HDD and you are all set to record! !Recordings are BEAUTIFUL!! !VERY happy with this product!! :DRecommend you get the 3.0 USB HDD drive for the 'optimal' videos as well. You'll get about 310 hours from a 2 TB drive :DI will update this review further once the product works with the PS 4, if ever.Game on!
Answer: The Wii has a component cable option, so yes.  You could also record gamecube games played on the Wii.  I do not know if Gamecube ever had component out.