PELCO® Silicon Nitride Coated and Silicon Ø3mm Discs (blanks)

PELCO® Silicon Nitride Coated and Silicon Ø3mm Discs (blanks)

Marsoni

M251S

$372.55

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

PELCO® Silicon Nitride Coated and Silicon Ø3mm Discs (blanks)Silicon Nitride Blank These 3mm Silicon Discs have an ultra flat (Ra 0. 45 0. 2nm) 50nm ultra low stress Silicon Nitride layer on both sides. Also available with a hydrophilic or hydrophobic surface coating or just as a silicon disk. The disks are made with the same state of the art manufacturing techniques as the PELCO Silicon Nitride Support Films. The disks are perfectly round and have the Easygrip edge for easy handling. Clean surface, no broken

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Great product is you want to mount any size laptop under your desk. I used it for my Alienware gaming laptop and it's fantastic! The three points of contact hold the laptop securely, while allowing maximum airflow for the fans. The three "clamps" are rock solid and will definitely outlive the laptop. The installation was simple and easy, just need a drill.

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Reviewed in the United States on March 15, 2026

Verified Purchase

David H.

Chelsea, US

★★★★★ 5

under desk laptop system

Color: Black, Size: 1.37" without hook

Reclaimed real desk space with this one. The mount holds the laptop securely underneath without any vibration or creaking and the installation required no drilling — clamped cleanly to the desk edge. The ventilation spacing is generous enough that thermals stay reasonable even under load. Works with a solid range of laptop sizes and the adjustment mechanism is easy to use. If your laptop spends most of its time docked this is the cleanest way to get it out of the way.

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Reviewed in the United States on March 25, 2026

Verified Purchase

Echo November

Charlottesville, US

★★★★★ 4

Works great, but pads are peeling.

Color: Black, Size: 1.37" without hook

Works for what I needed, which was to mount my work laptop to the side of my desk. However, the rubber pads started peeling the first day. I tried clamping them down overnight, but they still ended up peeling up. They haven't come off completely and are still working, though. I may have to glue them down.

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Reviewed in the United States on April 14, 2026

Verified Purchase

Charlottesville, US

★★★★★ 5

Quality product.

Color: White, Size: 1.37" without hook

First of all it's made of metal so, I won't worry about accidentally breaking it and dropping my laptop. It came with adhesive rubber pads that fit inside the brackets, which is a nice touch for helping not to scratch up the laptop. It makes a huge difference to help declutter the desktop space.

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Reviewed in the United States on March 18, 2026