We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Ten black cylindrical seal plugs with knurled edges arranged on a light surface

Alphacool

Alphacool 18036 MCX Seal Plug 10 pcs Kit - Black

SKU CH-X19S-V5DZB MPN 18036

Kit of ten black sealing plugs to close unused ports on an MCX water-cooling manifold

  • FeaturesThe MCX manifold system offers an affordable and transferabl
  • Seals unused MCX manifold ports to prevent leaks
  • Kit includes ten black plugs for complete coverage
  • Designed for the Alphacool MCX water cooling system
  • Affordable way to maintain loop integrity when ports stay open
  • Compatible with virtually all graphics-card MCX manifolds

Purpose and fit

This kit supplies ten black sealing caps for the Alphacool MCX manifold system. It is intended for builders who leave one or more manifold ports unused and need a reliable way to close them. The caps keep the loop watertight without requiring a full port count on every graphics card. They suit custom loops that change card layouts over time.

Critical spec

Each plug fits the 6 mm inner-diameter channels used by the MCX series. Compatibility is limited to that specific manifold geometry, so the part will not seal other fitting standards or thread sizes. Buyers must confirm their loop uses the MCX manifold before ordering.

Thermals, noise and power

The plugs are passive metal components with no moving parts, so they add no heat, no noise and no electrical draw to the system. Once installed they simply maintain loop pressure and coolant integrity under normal operating temperatures.

Highlights

  • Seals unused MCX manifold ports to prevent leaks
  • Kit includes ten black plugs for complete coverage
  • Designed for the Alphacool MCX water cooling system
  • Affordable way to maintain loop integrity when ports stay open
  • Compatible with virtually all graphics-card MCX manifolds

Specifications

BrandAlphacool
Model18036
FeaturesThe MCX manifold system offers an affordable and transferable water cooling solution for virtually all graphics cards. As the manifolds of the MCX system don't always have to be fully connected, Alphacool offers sealing caps to seal the unused connections.
Part Number18036

Questions about this item

What does the 10-piece count mean for a build?

The kit supplies enough plugs to seal every unused port on an MCX manifold in a single graphics-card loop

Which connection standard do these plugs use?

They match the MCX manifold port specification so unused channels stay leak-free

What physical fitting size must the manifold have?

The plugs are made for 6 mm inside-diameter ports on the MCX manifold

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.