SPB3412 | SPB V-Belt 3412mm

Marsoni

M251S

$147.12

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

SPB3412 | SPB V-Belt 3412mmProduct Details : SPB3412 SPB V Belt 3412mm Part No: SPB3412 Product Type: V Belt Belt Number: SPB3412 Series: SPB Top Width: 16. 3mm Thickness: 13mm Inside Length: 3412mm Details: Oil and heat resistant. Static dissipating. Built to European standards DIN 7753, AFNOR T47 117, BS 3790 and ISO 4184. SP series V belts were the forerunners of the RMA deep wedge, high capacity V belt sections. These deep wedge belts (38) allow for more power, high speed

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This is one of the very, very few USB-C hubs out there that successfully pushes DisplayPort Alt and 100w PD functionality from one source cable to one device. My monitor has a USB-C DP alt port that also pushes 95w PD and this hub successfully pushes both of those to my laptop, phone, and android handheld console. The marketing material says something about USB PD cannot work with DP alt, but it seems to be working fine for me so who knows. With this little hub in-between the link from the monitor to the device, I can now add a USB ethernet adapter and game controller, and I only ever have to plug one USB-C cable into my device (and I am using a USB4 extension cable with no issues as well) and it all works perfectly!

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Reviewed in the United States on January 21, 2026

Verified Purchase

Mark N.

Houston, US

★★★★★ 5

Supports Reverse Charging a Laptop on Monitors with USB-C PD!

This adapter is unique in that it supports reverse charging + video on the same port. I use this with an LG monitor (60W PD) and an M1 Pro Mac. At first, I had connectivity issues: hub was disconnecting and reconnecting every few seconds. I followed advice to update the firmware on the hub, but that didn't solve the issue. Turns out, my monitor also needed a firmware update. Once I updated the monitor firmware, it stabilized and has been working great ever since.

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Reviewed in the United States on August 4, 2025

Verified Purchase

Z. Razieli

Port Orchard, US

★★★★★ 5

Works perfectly with Macbook Air M2 - power, audio, video, sleep/wake, in clamshell mode!

My monitor has a USB-C video input that supports power delivery - so I was supposed to be able to charge my laptop with the same connection that goes to the monitor. Have had trouble finding an unpowered hub that actually supports all this without any hiccups, but according to all the specs I knew this was supposed to be possible. But this one does! Now I can connect my apple laptop to my monitor, keyboard and mouse, and run in clamshell mode or with the laptop open, and it charges, wakes from sleep, does all the things I want. It also sends audio to the monitor (as it should). And I only need one USB-C connection to my laptop to do all this. Note: I just got this hub so I don't know about longevity, and I haven't tested transfer speeds from all the ports on the hub, because that's not a big concern for me.

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Reviewed in the United States on March 25, 2026