TIE4i4o Interface with MIDI-Merge

Works easily and consistently on Mac OS X. Will happily transmit SysEx without any trouble, so MIDI Show Control (MSC) commands work. The build quality is not amazing, and the strain relief on the join between the USB interface and the MIDI cables is poor. However, the functionality is perfect and it works first time. Excellent value, does exactly what it's supposed to.

I bought this product so I could have a separate MIDI in/out for each of my 4 rack mount synthesizers - particularly for sending System Exclusive commands so I can tweak sounds in real time, and doing bulk dumps and bulk loads of patches over MIDI. I'm running Reaper 6 on Windows 10.I connected the unit up, so each synthesizer had its own MIDI in/out, fired up Reaper, and went into the MIDI hardware settings so that Reaper recognised the MIDI inputs and outputs for the new device. So far, so good.Next job was to test that everything was working. Output 1 was working OK, and I was hearing sound. However, outputs 2, 3 and 4 would cause each respective synthesizer to show a MIDI data error, and not play anything.Being the geek that I am, I thought that I'd fire up MIDI-OX to analyse the MIDI data going out from Reaper to ensure that the note on messages were going to the correct output. However, MIDI-OX was not able to open the MIDI output - turns out that the driver for this only allows the interface to be open in one application at once. That's useless for me - as I want Reaper open so that I can map a keyboard connected to a different MIDI interface to a synth module connected to the TIE 4i4o so I can play the keyboard into Reaper and hear the synth module make sound, while tweaking the sound via System Exclusive in another application. The MIDI interfaces for my Roland MX-1 and even my Creative SoundBlaster allow this - so goodness knows why the driver for the TIE 4i4o does not.This product is going back ASAP, and I'm going to hunt down an M-AUDIO Midisport 4 instead. At least that should actually have a chance of working!

Works great on my Yamaha piano and my laptop. A fraction of the price of an official Yamaha cable. I read that you need to download Yamaha's drivers and I had a problem installing them, but (using Windows 10) it turned out I didn't need the driver anyway - works as a plug and play.

I'm using it with Ableton Live Lite 9 and a good quality Technics keyboard. There's barely any latency so this is a great way to compose on the laptop. I saw one bad review about cable termination so I've checked mine carefully: there are no wires hanging out. I think this is going to last me years and give me great fun - all for about a tenner!Connecting the MIDI cables immediately causes an annoying buzz in my laptop's audio. It's OK if I unplug the mains adaptor and run on battery, so this os some kind of earthing fault. A MIDI interface should have a very high level of isolation between devices so this should not happen at all. I wonder whether they cut corners in the design and skipped the opto-isolator.

Works well so far. Using it with an iPad Pro with lightening to USB 3 adapter (cck) and an old Yamaha P-80 Electric piano. It does not require external power to the TIE adapter with this set up. No dropped notes. Cables are a little thin but fine. Was warned against cheap cables but this one has a good cost/quality balance as seems to function very well. I bought a Warehouse deal one as although the packaging was damaged etc it was arriving much sooner than the regular new one would (several weeks) and was a little cheaper at under £10. Was worried that it might be a broken returned item but works fine.

Well priced. This product is cheaper than other brands like the M-Audio but has the same functions.I am using this with the Korg Volca FM to send Sysex data from my Mac and iPad. This product works with both. It also has no hanging notes, which every cheap USB MIDI cable does. It also successfully sends Sysex data, which cheaper products also do not.Sysex capabilities seem to be a completely hidden function among USB MIDI cables, no products state whether they do or don't have it. This one thankfully does.I'd 100% recommend just getting this product instead of faffing around with cheap ones and never having a good experience with them.

Spent months with other cheaper cables trying get SysEx data to transfer without any luck.Got this one, plugged it in and had my old vintage midi gear up and running (successfully programmed) in minutes.Wish I had off bought this in the first place. Would have saved soooooo much time and effort!Build quality - .Meh. You get what you pay for. You can opt for the Roland equivalent up to three times more expensive, but as far a functionality goes, it's just perfect!

Useless - do not waste your time. I ordered one of these and it was received promptly. The instructions are minimal and unhelpful. On connecting it to my keyboard and USB power source, a blue light comes on, but it does not show up on any bluetooth connection panels across an iPhone 7, iPhone 8, iPad mini, iPad mini 2, 2017 MacBook 12", 2015 Macbook Pro 13".I exchanged multiple emails with support who responded but were not helpful. They suggested trying a 3rd party iOS application from KORG. Which didn't work, but in any case would not help with the Mac situation. They even suggested that the product needs 24 hours to charge its batteries before it can be used (this product has no batteries). Eventually the support person gives up and says to send it back to Amazon as it is clearly faulty.So I return it to Amazon and exchange for a replacement. That arrives. It cannot be seen in any system bluetooth connection panel. However, this one DOES show up in the KORG app and will connect. I am even able to get Garageband on iOS to recognise it as a MIDI input. However, when trying it out, only about 1 in 5 notes is transmitted to Garageband, and even then they are the wrong notes.I have sent the second unit back and will return to my wired MIDI connection while trying to find a better product than this piece of junk.