Kenton GPMX-16 bi-directional MIDI to GPI and GPI to MIDI converter

Kenton GPMX-16 bi-directional MIDI to GPI and GPI to MIDI converter

Marsoni

M251S

$334.50

Get it in 3 business days with 1 day shipping. Friday, May 29

Kenton GPMX-16 bi-directional MIDI to GPI and GPI to MIDI converterThe Kenton GPMX 16 features 16 GPI (general purpose interface) inputs and 16 GPI outputs arranged on four 9 pin D connectors. D sockets for inputs and D plugs for outputs. It can receive and output MIDI messages as Notes, Controllers (CCs) or Program Changes. In the following description references to MIDI note numbers also applies to Controller Numbers or Program Numbers if that is the input or output mode currently in use. Includes multi region

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Consistent energy, good taste, and no weird side effects ✔️ Sugar-free with no crash ✔️ No headaches or jittery feeling ✔️ Clean, smooth energy boost ✔️ Good flavor without being overly sweet ✔️ Reliable enough for long-term daily use ✔️ Subscription makes it easy to keep stocked I’ve been buying Monster Zero Ultra for years and have it on subscription. It’s the one energy drink I consistently go back to. I've tried most others and they all leave me feeling weird. I actually feel a noticeable energy boost from it, but without the downsides I’ve had with other drinks. No headaches, no weird jittery feeling, and no crash later on. The flavor is also solid (this one and Ultra Violet are my go tos') , not overly sweet, and easy to drink regularly. I only buy sugar-free energy drinks, and this checks that box without sacrificing taste. I limit myself to one a day after the gym and water the rest of the day. After trying a lot of different brands, this is the one that’s stayed consistent for me, which is why I’ve kept it on subscription.

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Reviewed in the United States on April 5, 2026

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Laurin

Dallas, US

★★★★★ 5

Monster

Flavor Name: Zero Ultra, Size: 16 Fl oz (Pack of 15)

Great price. Cheaper than the store. Zero sugar is a game changer!

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Reviewed in the United States on May 15, 2026

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Crystal Anderson

San Leandro, US

★★★★★ 4

Great Drink for Dads

Flavor Name: Zero Ultra, Size: 16 Fl oz (Pack of 15)

It tastes great and it is sugar free.

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Reviewed in the United States on May 8, 2026

𝐿

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𝐿𝒾𝓋𝒾𝓃𝑔 𝓉𝒽𝑒 𝒹𝓇𝑒𝒶𝓂!

Massapequa, US

★★★★★ 5

Clean, Crisp Energy Drink

Flavor Name: Zero Ultra, Size: 16 Fl oz (Pack of 15)

This energy drink has a light, crisp flavor that is noticeably less heavy than many traditional energy drinks. It has a slightly citrus style taste with a smooth carbonation that makes it easy to drink without feeling overly sweet or syrupy. The zero sugar formula keeps it feeling cleaner on the palate, which I appreciate when I want something refreshing instead of something thick or overly intense. It goes down easily and does not leave a strong aftertaste. I find the energy boost to be steady and consistent, without feeling like an abrupt spike. It feels more balanced, which makes it easier to use during long work periods or when I need to stay alert without feeling overwhelmed. The 16 ounce can size is convenient, and the pack format is practical for keeping stocked at home or grabbing on the go. It is easy to chill and stays refreshing cold. Overall, this is a smooth, lightly flavored energy drink with zero sugar, consistent performance, and an easy drinking profile that makes it a reliable option for everyday energy needs.

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Reviewed in the United States on May 8, 2026