Way back when I wasn't really collecting N64 stuff and no one else seemed to care either, I picked this "thing" up from an ebay auction for no more than $40, I believe it was somewhere around 2005 or 2006. Anyway
it has been sitting in a box collecting dust ever since, but I think it's time to shed some light on this dev device from the N64 heydays.
The information provided in the auction was very sparse, but what I got was a N64 flash "prototype" cart looking device with a major hole cut out on the backside to make room for what I thought would be a SCSI port,
but I've recently learned that it's just a normal "printer port" type of connector. The board inside says "NUS-SUD-X2" and is dated 1996.6.21. There's no glossy label on the front, I've seen other carts with such,
instead it just has a very small sticker saying "NUS-SUD No. 0046 Nintendo".
Back in the day when I won the item I of course booted the cart to see what it was, but all I got was an almost empty screen saying "N64 Sound Tool V3" and a small N64 logo.
And that is pretty much all you can do when powering on the cartridge.
The Nintendo SDK gives the following system requirements for the Sound Tool cartridge:
Standard PC w/ Pentium 90 MHz CPU
16 MB of memory
10 MB of free disk space
Printer port or parallel I/O card with full two-way communication capability
Standard Centronics Printer cable
Sound card (for Waveform Editor)
N64 Control Deck including AC adapter and AV cable
So basicly all you need is a regular printer cable and some software, which is impossible to find and obtain if you aren't licensed. also worth noting is that the Sound Tool cartridge doesn't require an N64 system
modified for development, it runs on a regular retail system.
Above is a shot of the special NUS-SUD-X2 board which hosts an "MWP ADIC" and "MWP 03" ... whatever that is :-)