Good news for those who want a bit of everything with the pi 400, bad news if you want just the pi 400 because unfortunately it's out of stock and if you really need it, you'll have to get the kit.

Personally, the kit was more cost-effective for me than paying for shipping for each individual item. I recommend ordering a fast micro SD card of at least 64GB. Be careful, the SD card that comes with it has preinstalled Rasbian 32bit, so if you want a serious distribution, either download the 64bit version or switch to other distributions that support arm64.

Quality check:
- The keyboard is a bit cheap but not bad for its excellent price.
- The mouse is okay for simple use.
- Good temperatures with and without overclocking.
- Since it comes with an 'official' power supply, you can overclock without having to search for voltage and current in third-party power supplies.

I also mention that if you manage to set over_voltage=5, cpu 2100mhz, and gpu 700mhz, you have a lucky quality silicon. If not, it will definitely be stable at 2000mhz.

My setup:
over_voltage=5
cpu_freq=2000
gpu_freq=800
gpu_mem=256

Perfect! Complete! Perfect for retro gaming pc. Many hardware mods with GPIO. For now, it has transformed into a very nice AMIGA for a lot of gaming!

With one purchase, you get everything in one.
Ready to accept the plethora of images for microSD available online. Many people are dealing with this and it saves you a lot of trouble.
I use it as a Game center with Retro pie & Recal Box.
It recognizes all the USB controllers for PC normally. I had purchased it for 105€ from the Greek dealership.
Prefer the version where the board is integrated into the keyboard as it runs 300mhz faster than the one that simply connects to it. That means the pi400 runs at 1.8 without raising the temperature. I have the version with 4GB of RAM