Rock Pi 4B single board computer review and demo, including testing a WD Black M.2 NVMe SSD in Debian, and media playback in Android. The video also shows the acrylic case, eMMC module, and large heat sink. You can find more information on the Rock Pi 4 on its website here: http://rockpi.org/ and in the RADXA wiki here: https://wiki.radxa.com/Rockpi4 For NVMe and cooling tests, see my follow-up video here: https://www.youtube.com/watch?v=l6EUfqywsOI This is not a sponsored video. However, the Rock Pi 4B featured was supplied for review by Allnet, who sell the board and its accessories here: https://shop.allnetchina.cn/ (outside Europe) and here: https://shop.allnet.de/search?sSearch=rockpi (inside Europe). My review of the Nano Pi M4 is here: https://www.youtube.com/watch?v=knS854Taz-E You may also find useful my review of the WD Black NVMe SSD: https://www.youtube.com/watch?v=kvHUVcgo8xY More videos on SBCs and wider computing topics can be found on the ExplainingComputers channel at: null You may also like my other channel, ExplainingTheFuture, at: null #RockPi #RockPi4B #SBC #ExplainingComputers