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Description
ESI M4U eX 8-port USB 3.0 MIDI interface with USB hubHigh Performance USB 3. 0 MIDI with automatic I O detectionM4U eX is a compact and yet extremely powerful USB 3. 0 MIDI interface with 8 MIDI ports. Each of the 8 ports can either be used as a MIDI input or as a MIDI output, replacing not only traditional MIDI interfaces like it's popular predecessor models with 4 inputs and 4 outputs, but providing also other possible configurations. For instance, you can use up to 8 outputs at a time or up to 8
High Performance USB 3.0 MIDI with automatic I/O detectionM4U eX is a compact and yet extremely powerful USB 3.0 MIDI interface with 8 MIDI ports.Each of the 8 ports can either be used as a MIDI input or as a MIDI output, replacing not only traditional MIDI interfaces like it's popular predecessor models with 4 inputs and 4 outputs, but providing also other possible configurations. For instance, you can use up to 8 outputs at a time or up to 8 inputs, or 6 outputs and 2 inputs - to name some examples. And the best feature? This is all handled automatically, simply based on your connection to other MIDI inputs or MIDI outputs and each automatic input / output configuration is displayed via colored LEDs on the front panel.M4U eX is not only one of the worlds first USB 3.0 MIDI interfaces, it also includes a USB 3.0 hub with 3 connectors for other USB equipment like software dongles or USB keyboards and others. This can literally turn this device into the central hub for your MIDI and USB musical instrument devices. The class compliant device can be bus powered or if needed for other USB devices, be powered by the included DC power supply.The Windows 7 / 8.1 / 10 / 11 and macOS compatible device provides not only perfect timing and the highest low latency performance of any MIDI interface in it's class on the market today, it can even be used fully standalone without a computer: different operation modes allow you to route input to output signals, merge MIDI signals or use M4U eX as a MIDI thru box. These modes can be selected with the push of a button when needed.If the 8 ports are not enough, you can connect multiple units to the computer at one time - plus there is also the larger M8U eX available, with 16 ports.Bundled SoftwareIn order to get you started right out of the box, M4U eX ships with a powerful software package for professional recording, creation of your own songs, mixing of any audio content and much more. The following applications are currently included:Cubasis LE is the compact version of Steinberg's mobile multitouch sequencer, providing the same look and feel of its bigger brother Cubasis. Specially designed for quick and easy operation, Cubasis LE makes recording, editing and mixing a breeze, no matter where you are, right there on an iPhone or iPad when connecting M4U eX.
- USB 3.0 MIDI interface
- 100% class compliant, works without the installation of a driver
- USB bus powered
- 8 MIDI ports, 4 on the front and 4 on the back
- automatic input and output detection, each port works as a MIDI input or MIDI output
- standalone operation possible
- can be used as MIDI Thru box in standalone mode to send one MIDI signal to 7 outputs
- can be used as MIDI merger in standalone mode to merge 7 MIDI signals to a single output
- 3-port USB 3.0 hub with external 5V DC power supply to power USB devices (power supply included)
- multiple units can be used with one computer at a time
- downwards compatible to USB 2.0 with a USB 2.0 legacy mode
- optional ESI MIDI Port driver for multi device / multi client operation under Windows available
- dimensions roughly 17.5cm x 12.0cm x 4.5cm
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4.8 ★★★★★
Based on 26 reviews
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Product Reviews
★★★★★ 5
Relaxed Fit Linen Blend Button Down Shirt
Size: Large, Color: Light Beige, Size: Large, Color: Light Beige
I like this shirt and it actually looks better than it does in the attached photo. The shirt is 55% linen and I took the photo without ironing because I wanted to show that this shirt is better than many linen shirts when it comes to wrinkles. In fact, I can steam the wrinkles out and don’t need to drag out the iron. The shirt is cool and comfortable. I like that you can use the draw string waist to make it more fitted. The button holes are a little small, which makes it harder for those of us who have arthritis to use. I will just leave most of the buttons fastened and slip the shirt over my head. It seems very well made. I looked it over carefully and did not find any loose threads or missed stitches. I think this is a good value.
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Reviewed in the United States on May 28, 2026
★★★★★ 5
Cute summer top
Size: Large, Color: Light Beige, Size: Large, Color: Light Beige
Cute and comfortable linen blend shirt that’s perfect for summer. The fit is relaxed without looking oversized or sloppy, which I really like. I usually wear between a large and extra large depending on the chest area, and I ordered the large based on the size chart. It fit correctly according to the measurements, but I personally think the extra large may have been a little more comfortable for me through the bust. For reference, I’m around a 33-inch waist and a 42C bust.
The light beige color is really pretty and easy to style with denim jeans, jean skirts, or sandals for a casual summer look. Since it’s a lighter-colored cotton-linen blend, you’ll want to wear the proper undergarments underneath depending on your skin tone, which is pretty normal for linen-style fabrics. I also love the adjustable cinched waist because it gives the shirt a more flattering shape without making it tight. Overall, it’s a beautiful lightweight top with a nice relaxed fit, and I definitely recommend it.
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Reviewed in the United States on May 16, 2026
★★★★★ 4
Linen/Cotton Blend; Machine Wash Cold, Lay Flat or Hang to Dry; Real Buttons
Size: Medium, Color: Light Beige, Size: Medium, Color: Light Beige
Amazon Essentials Women's Relaxed Fit Linen Blend Wide Sleeve Shirt with Adjustable Tie Waist Review:
I got this for my daughter mostly (we trade clothes back and forth), and she finds it very comfortable and flattering. For reference, her measurements are about:
39 inches around the bust
35 inches around the hips/stomach
And 42 inches around the bottom
I ordered her a Medium, and it fits her very well, but it's on the edge of being big. If she lost a little weight, it might seem big but fit me a little better, but it fits her very well now.
It's a very breathable fabric, and the cut is flattering.
It is a little see through, not majorly, but she says she will probably wear it with a white or nude tank top as an underlayer, possibly with a bra too, but at that point it might be too hot for a summer outfit.
It could be dressed up or down and would pair well with a skirt or jeans, with sandals or heels or cute sneakers. It could also be worn fully unbuttoned over a tank top, if one wanted.
The buttons are real, and seem well-sewn. The collar is initially reluctant to stay open, but it will relax in time or one of us could iron it like that, but we're unlikely to, lol.
The only complaint she had was that when she goes to raise up her arms and hold them horizontally out in front of herself, the sleeves and shoulders become too tight across the back and up the arms, although this is a very common problem, unfortunately, with women's/girl's clothing. We'll have to live with it, but it will keep the shirt from being worn as often as it might have been.
We're definitely happy for the natural fibers (a linen/cotton blend).
We are both excited to wear and style it. I'll include photos.
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Reviewed in the United States on May 14, 2026
★★★★★ 5
Stylish & Comfortable Linen Blend Shirt with Great Fit and Durable Feel
Size: Small, Color: Light Beige
This Amazon Essentials linen blend shirt is a really nice addition to my wardrobe. The relaxed fit sits comfortably without feeling too loose or shapeless, and it drapes well on the body. The wide sleeves and adjustable waist add a stylish touch, making it look both casual and slightly dressed-up at the same time. The fabric feels good—light, breathable, and perfect for everyday wear. It has that easy, airy feel that works really well for warm weather while still looking put together.
After the first wash, I was happy to see that the quality stayed the same. No noticeable shrinking, fading, or change in texture, which gives confidence that it will hold up well over time.
Overall, it’s a simple but very flattering shirt that combines comfort, style, and good durability. Great for everyday outfits or casual outings where you still want to look a bit polished.
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Reviewed in the United States on May 13, 2026
★★★★★ 5
Sizing Varies, But an Amazing Tee if you get the right size!
Size: Large, Color: Navy
I ordered this in a size Large, my recommended size per Amazon and the size chart, it was so small through the underbust area that I could not wear it. I then ordered an XL and it is huge! The XL is too big everywhere, but especially through the bust! For your reference the bust line in the XL measures 42" pit to pit. I am going to try again to order a Large and see if perhaps I just got one that was sized incorrectly.
This tee is so cute. I love the fit, the neckline, the slight flare at the hem. It's super cute and offers a great feminine look and feel. The material is amazing. Super soft, perfect non-clingy drape, opaque, lightweight . . . there's nothing not to love here!
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Reviewed in the United States on October 6, 2025
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