Backbit Pro, a possible replacement for the C4CPC by Gérald ?
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Genesis8
The C4CPC isn't made anymore by Gérald due to lack of time and exploding costs (x3).
But the Backbit Pro could be a possible replacement. Beware it's more than 100 dollars, but you also have the to buy the corresponding Amstrad CPC+/GX4000 adaptater :
the adaptater has a chip for ACID protection bypass
The adapters include a solderless jumper (one jumper is included, and extra jumpers can be purchased, required for ACID bypass)
3.5mm jack allows connecting a BackButton (to move back in the menu without touching the backbit pro, some systems such as Amstrad require an included solderless jumper) or a GenAssister
Supports cartridge images (BIN/CPR) up to 1MB in size
Real-time-clock remembers date & time even after shutoff. Useful when creating new files or versions
One-button diagnostic mode helps you identify system faults (on most systems)
Upgradeable via MicroSD card
New firmware for the USIfAC II and ULIfAC by Ikonsgr
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Genesis8
Ikonsgr has released new firmware for his expansion cards USIfAC II and ULIfAC
. THe ULIFAC is the last iteration of his card which started with the USIfAC 1.
HxC Floppy Emulator Manager v4 released by NoRecess
RAM upgrade from 512 to 640Kb on a Sinclair PC200 by Amstrad Retro Geek
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Genesis8
If you have a Sinclair PC200 (PC XT) still with its RAM default (512 Kb), I invite you to see the video by Amstrad Retro Geek which shows how to upgrade to 640 Kb.
An Amstrad CPC romboard using a raspberry Pico by Matronica
Gotek with deported screen on Amstrad PPC 640 by Dedion30
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Genesis8
An Amstrad PPC 640 with an internal Gotek and a deported screen on System.CFG, done by Dedion30. The deported screen is parked in the slot for the modem cable when the computer is closed.