You are watching a set of 8 (eight) Mitsubishi M5M4464AL-12 DRAM chips in ZIP20 package suitable for Yamaha SY99 synthesizers. These machines suffer from RAM problems. Many symptoms will result from bad RAM chips - from no sound to distortion or noise or missing notes in some patches, specially while using effects.

You may notice that NEC M5M4464 is missing pin 10 but Mitsubishi MB81464 has all pins - well, pin 10 (and 11) have no function in these chips.

You will receive 8 NEW units and they will be individually tested with proper equipment prior to shipping. This is very important - many times you may be buying used or damaged chips without knowing (or even without your provider knowing) and you will rule out DRAM problems when they are in fact damaged.

I repair and collect synthesizers since 1992, I have more than 100 synths and I sell hundreds of parts for it.

My items are new and I send same or next day (depending on payment hours) by tracked mail with shipping costs included to anywhere in the world.

SHIPPED FROM EUROPE