From the description on the video:
The Everdrive N8 Pro for the NES. Everdrives are flash carts, allowing gamers to load ROMs onto actual hardware by essentially emulating a cartridge. While the original Everdrive N8 was released for the NES and Famicom 7 years ago, Krikzz is back with an update. This new N8 Pro sports a newer FPGA, a larger maximum ROM size, a faster microSD slot, op amp-based audio circuitry, an in-game menu, a 99 save state per game capacity, and a real-time clock. Unfortunately, the Pro also sports a price tag just over $50 higher than the original. If you're just dipping your toes into the Everdrive ecosystem, you can make a strong case for either; going with the less-expensive N8, or shelling out the extra bucks for the Pro. If you've already invested $100+ in an N8 and are now considering dropping $170 more on the new cartridge, you may find that there's really nothing here to justify the purchase. This is not a knock on the Pro by any means, but rather just a reflection of the fact that the original Everdrive N8 was and still is a very capable flash cart.