As long as you have a Pi 4B, a micro SD card and a keyboard and mouse, this kit will be the only thing you need to put together your own little desktop computer.

Specifications
Crystal-like appearance
Best looking layered clear case you'll get - Made of Acrylic, the pi case makes sure that won't block the signal for onboard wireless networking and Bluetooth.
All ports are available
Easy access to the USB-C power, dual micro HDMI, Audio/Video, USB and Ethernet ports, GPIO port, Camera cable and access to the micro SD card
3A Raspberry Pi USB-C Power Supply
The 3A USB-C Power Supply is specially designed and tested for the Raspberry Pi 4, 1.5m power cable with ON/OFF witch which means less messing around with the cable to turn the pi on and off.
Better heat dissipation performance
The fan with the heat sinksthe temperature of the CPU could drop around 25-30 Degrees at 5V tested in various typical desktop activities .
Micro HDMI Cable
6 Feet/1.8m Micro HDMI Cable provides up to 4K resolution and up to 60P to support 4k60P. It provides CEC support to allow a CEC compatible TV remote to control the Raspberry Pi in popular operating systems.
Rubber Nub-Feet
The rubber feet on the bottom of the case, elevate the nuts from contacting the surface and provides a stable platform that allows air to circulate on the bottom side of the board.

Kit Includes
- Miuzei Raspberry Pi 4 case
- 3A USB-C Power Supply
- Micro HDMI Cable( 1.8m)
- 30mm Cooling Fan
- Set of 4 Aluminum Heat Sinks
- HDMI (female)-Micro HDMI (male) Adapter
- USB Card Reader
- 4 × Rubber Feet
- Paper Installation Instruction

Note：
Please peel off the protective films on the top and bottom layers before you set it up which make it looks cloudy, the film is thiny and not easily noticeable