For the Commodore C64C 4in1 16k Kernal ROM Replacement.
This is a drop-in replacement for the 251913-01 U4 27128 ROM, which holds the Kernal ROM and combined BASIC ROM.
This is also compatible with the c128's c64 kernal ROM (U32).

The EPROM is pre-programmed with a range of C64 Kernal's which can be chosen with the jumper's at the top of the replacement IC.

1:)CBM 901227-03 Original Kernal
2:)EXOS v3 Kernal
3:)LemonDos Kernal
4:) 781220 Dead Test ROM

And is compatible with the c64c later flat c64c's.
Assey - 250466, 250469. 
(This is not compatible with the c64 & SX-64'S as they use a 8k ROM)


This replacement IC uses high-quality round gold-plated pins and Winbond 27C512 EEPROM and uses a 2 mm pin header.
Basic Instructions are included to help you set the Kernal using the jumpers.
It is recommended that this is fitted into a round pin 28pin socket.

This also holds the 781220 Dead Test ROM and can help troubleshoot a faulty system.

The EEPROM can also be reprogrammed, 
a PLCC32 TO DIP32 adapter should be used.

This item will be posted the next working day.
All items are shipped in anti-static packing.
Delivery times are stated in the postage and payment tab and will be posted with tracking. Delivery times are estimated.

Please check out my other items
Please ask any Questions


1 x Commodore C64C 16k 4in1 Kernal ROM