Appearance: NEW OLD STOCK, some wear
Functionality: NEW OLD STOCK

Description:
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Similar to pictured, a MOS 318023-02 Chip. These are Commodore original / new old stock.

Warranty and Returns:
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Stock#:C2046.EG#.1


Details from http://www.cbmhardware.de/c128/firmware/128ROMs.readme:

The following table summarizes my understanding of the 128 ROM revisions for
the United States.

Version BASlo BAShi Kernal
------- ----- ----- ------
First 318018-02 318019-02 318020-03
Middle upgrade 318018-03 318019-03 318020-04
Final upgrade 318018-04 318019-04 318020-05
128DCR 318022-02 lo 318022-02 hi 318023-02 hi

Part number 251913-01 is the 16K 64 OS ROM, which is present in both the 64C
and the low-profile 128. I have confirmed that this ROM is identical to the
first half of 318023-02. Also, I have confirmed that the final ROM upgrade
is the same as the 128DCR version. The only difference is that the OS for
the low-profile 128 is stored in four 16K x 8 ROMs rather than two 32K x 8
chips.