CaDD V9938 Hybrid Video Card - PRE-ORDER

This is a PRE-ORDER; no parts will be ordered until after the pre-order closes.  This pre-order will close on October 2, 2026, to give everyone an opportunity to purchase.

Please note this card does require a modification to the console of one trace to be cut or a via to be drilled out.  I do recommend using a dip switch to make this mod so that the console can be put back to original stock simply by flipping the dip switch and installing the original VDP. 

Also make a note in the console or on the back that it has been modified for use with the CaDD video card.

This card has all the functionality of the TMS9918, and all the additional graphics modes of the V9938.  After the unlock sequence, the card morphs into an F18A with all layers including bitmap; the F18A GPU is also fully implemented.

Features:

• Text 40, bitmap, and graphics, of TMS9918A for compatibility with existing software.
• Text 80 column
• Graphics
• Bitmap
• Multicolor
• G3 Same as G2 + additional sprites per line.
• G4 256×192/212  4BPP full bitmap mode
• G5 512×192/212 2BPP full bitmap mode
• G6 512×192/212  4BPP full bitmap mode
• G7  256×192/212 8BPP full bitmap mode
• V9938 Vertical scroll
• All hardware acceleration of the V9938 in all bitmap modes.
• Also adds accelerated font blitting.
• V9938 has 192K video RAM 128kb base, and 64kb extended.
• F18 has 16K RAM
• F18A Layer 1, Layer 2, and Bitmap layer.
• F18A horizontal, and vertical scroll.
• VGA output 16-bit DAC.
• Comes with 40 pin PCB that replaces the TMS9918A, has GROM CLOCK and header for interrupt connection.
• Only one via on main board must be drilled.

Tested with:

• The majority of the software that CaDD distributes with PC99W.
• Mario Bros
• Karts
• Alex kid
• Scramble
• Monkey Demo
• Many Others

• Brand: CaDD Electronics