Professional Gameport MIDI cable
since year 2004 (see first feedbacks)

with optical galvanic separation and double inversion TTL-chip for connecting the MIDI device (e.g. a keyboard or a synthesizer) to the PC sound card.
With the corresponding software and connected keyboard you can compose music on your computer.
+++ 14-days moneyback +++
 
Sub-D-15-pol to PC Gameport

golded pins

DIN 5 Pin MIDI-IN

female

DIN 5 Pin MIDI-OUT

female

Galvanic separation.

 
CNY17 optocoupler, 2 microS. Microsecond - one millionth of a second. Such lag  the human ear naturally can’t notice, as well as the man can’t hear the ultrasound.
D-I TTL-chip LA3
Characteristics of the cable:

14 cm, black, very flexible

Stability: high
Midi devices protection 100%
Driver:

no driver needed

Conditions

new, tested and completely ready to use

Packing and shipping

Customer pays shipping costs. The item will be delivered within 6-12 days

  The keyboard and the computer are not directly connected. The signal passes through the optocoupler. General minor failures are smoothed out by an optoisolator. In case of serious failures the optoisolator works as a fuse. If, for example, your computer case unexpectedly gets 220 volts (as it often happens with noname cheap cases) or there is a failure in your synthesizer, the optoisolator burns out while your devices, computer and synthesizer, are safe. Here at eBay have been sold recently cables without optical galvanic separation and so called professional cables at low price.

WARNING! A sudden failure can damage your synthesizer or computer!

The optocoupler helps you to avoid such an end (или such losses или such damages) in most cases.

         To cut down expenses most cable manufacturers don’t build the TTL chip in. The double inversion ТТL chip serves as the adapter between the synthesizer, the optocoupler and the computer (these devices are in different logic states).