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C > COMMODORE  > SX/DX 64 - Executive computer   

SX/DX 64 - Executive computer

The SX/DX 64 is the "laptop version" (though hardly portable) of the C64. This computer has a built-in 5" color screen (just about enough for the eyes), a detachable keyboard with new functions, and one or two 5.25" floppy disk drives (the famous 1541), depending on the model.

The DX-64 and the SX-100 (SX-64 with black & white monitor) were first announced in January 1983 but the SX-100 never made it to the shelves and was replaced by the SX-64 later that year.

One important feature is that the SX/DX-64 lacks a cassette interface ! People who upgraded from the classic C64 couldn't play their games stored on tapes ! Some programs that used the tape buffer for storage (of sprites say) had problems too.
The cartridge slot is found on top of the case, and there is a sound speaker inside the unit (unlike the C64).

The DX-64 has the same characteristics as the SX64 except its two 5.25" floppy disk drives instead of one. A very small quantity was produced. It was probably never sold but only used by Commodore insiders.

The SX64 and DX64 computers never had success, probably because of higher selling prices, but were known as the world's first color portables.

The SX64 was not the only machine that Commodore made in this chassis, there was also the SX500, which was an Amiga in the SX case (see 'More pictures').

Please consider donating your old computer / videogame system to or one of our partners from anywhere in the world (Europe, America, Asia, etc.).


I want one. I am willing to pay up to $100 for it. Let me know!

Tuesday 28th November 2017

I have one of these, it is very nice! The only issue is a timing problem with the cartridge port, preventing me from using the MicroSD card reader I bought for it.

Friday 10th October 2014
Silent-Hunter (USA)

It is in perfect condition. There are no bugs no errors and has all of it''s parts. No scratches no dents perfect condition.

Saturday 17th December 2011


NAME  SX/DX 64 - Executive computer
TYPE  Transportable
YEAR  1983
KEYBOARD  Full-stroke detachable keyboard, 66 keys, 4 function keys
CPU  6510
SPEED  1 Mhz
RAM  64k (38911 bytes free)
ROM  20k
TEXT MODES  40 chars. x 25 lines with 16 colors
GRAPHIC MODES  several, most used : 320 x 200
SOUND  3 voices, 9 octaves, 4 waveforms
SIZE / WEIGHT  36.8 (W) x 36.8 (D) x 12.7 (H) cm
I/O PORTS  2 joystick sockets (Atari standard), cartridge slot, expansion port, serial, RGB video output, keyboard
BUILT IN MEDIA  SX-64 : 1 x 5''1/4 FDD
DX-64 : 2 x 5''1/4 FDD
POWER SUPPLY  Built-in power supply unit
PRICE  SX-64 : US$ 1000 (USA, may 1983) - £895 (U.K., 1984)

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