Sidekick64 is an extremely versatile cartridge/expansion for the C64 and C128.
 
It can use a Raspberry Pi 3A+, 3B+ or Zero 2 (only for C64/C128/VIC20) to emulate memory expansions, sound devices (up to 8 SIDs, SFX Sound Expander, MIDI), freezer cartridges, cartridges such as Easyflash/GMOD, kernal replacements, C128 function ROMs and many more. Some functionalities can be combined with others, e.g. kernal replacement plus freezers or GeoRAM expansion. The Sidekick64 handles among others PRGs, D64, CRT, SID files and also integrates tools such as Disk2EasyFlash, PSID64.
 
Its functionality is entirely defined by software.  A more complete list of currently implemented emulations/features includes:
 
- A GeoRAM/NeoRAM-compatible memory expansion,
- Freezer cartridges
- Action Replay 4.x-7.x
- Final Cartridge 3(+)
- KCS Power Cartridge
- Super Snapshot V5
- Freeze Frame and Freeze Machine
- Atomic/Nordic Power (experimental, at best)
- Numerous (bank switching) cartridges such as:
     - Plain CBM80, C16/+4 and C128 cartridges
     - Easyflash (with simplified EAPI support)
     - GMod2 (including EEPROM for save games)
     - MagicDesk/Domark/HES Australia
     - Ocean Type A and B (up to 512k)
     - DinamicC64 Game System
     - Funplay/Powerplay
     - Comal80
     - Epyx Fastload
     - Warp Speed (C64 and C128)
     - Megabit ROM (C128)
     - (Super) Zaxxon
     - Prophet64
     - Simons Basic
     - RGCD and Hucky's cartridge
     - C64 kernal replacement
     - Function ROMs on a C128
     - Multiple SIDs and Sound Expander/FM emulation (up to 8 SIDs, e.g. to play The Tuneful 8)
     - Simplified Datel and Sequential MIDI interface emulation with built-in SoundFont-synthesizer (slightly modified version of TinySoundFont)
     - TED-sound and Digiblaster emulation for C16/+4 (to have all sound devices on one output)
 
What's Included:
1 x Raspberry Pi 3B+ and 8GB Micro SD card ('ready to go' pre-configured)
1 x Sidekick 64 with built-in TFT Colour Screen
1 x 3D Printed Screen Support
 

Some functionalities can be combined with others, e.g. kernal replacement plus freezers or GeoRAM expansion. The Sidekick64 handles among others PRGs, D64, SID files and also integrates tools such as Disk2EasyFlash, PSID64.
 
Sidekick 64 is also compatible with the C16/+4, and the VIC20 using  an adapter, these are not supplied or available through us)
 
Powered via a 1a-2.5a Micro USB cable/charger (same as used for many mobile phones) 
 
YOUR ORDER WILL BE CONFIGURED & TESTED BEFORE DESPATCH.
We have only personally tested the basic features of the Sidekick64 and cannot advice on the more technical aspects of this device.  
 
For more information and technical details see : github.com/frntc/Sidekick64