EK Water Blocks EK-Quantum Surface P240M X-Flow
EK Water Blocks

EK Water Blocks EK-Quantum Surface P240M X-Flow

SKU HC-103651MPN 3831109838389

  • 240 mm
  • 44 mm thick
  • Copper

Highlights

  • 240mm size with 44mm thick crossflow core
  • Eight G1/4 inch threaded connection ports
  • 18 FPI non-louvered copper fins for low restriction
  • EK-Matrix7 compatible for standardized builds
  • Modular end caps allow 16 inlet/outlet configurations
  • Includes black M4 screws for 120mm fan mounting

Key specs

Size
240 mm
Thickness
44 mm
Material
Copper
Color
Black
Fin Density (FPI)
18 FPI
Pressure tested (up to)
1 Bar
All specifications
$95.99
  • ≈ 0.001244 BTC
  • ≈ 0.04192 ETH
  • ≈ 96.09 USDT

In stock Ships by Tue, Nov 10 when paid today.

  • Delivery to the United States: $39.90 DHL Express Worldwide · arrives Wed, Nov 11 – Mon, Nov 16 if paid today
  • Rate locked at checkout Up to 60 min to send BTC, 30 min for ETH and USDT
  • New, sealed and genuine Full manufacturer warranty
  • 30-day returns Unused items in original packaging
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Overview

A 240mm crossflow radiator built for custom liquid cooling loops. It offers eight G1/4 ports for flexible tube routing and a 44mm thick core for strong thermal performance.

Design and Construction

The radiator measures 300mm long, 130mm wide, and 44mm high, weighing 1.25kg. Stainless steel side plates feature a semi-gloss black coating, while copper fins receive a black matte finish. Thick extruded aluminum end caps with a silver accent cover the internals and create a rigid structure.

Performance and Flow

Sixteen 2mm copper tubes and 18 FPI non-louvered fins balance thermal transfer with low air and coolant restriction. The core performs up to 10% better than the previous CoolStream PE design. Low flow restriction allows multiple radiators on a single D5 or DDC pump.

Connectivity and Compatibility

Four G1/4 ports on each end provide sixteen possible inlet and outlet combinations. Modular plugs and adapters in the end caps let users optimize tube routing. The unit is EK-Matrix7 compatible, aligning with Reflection² distro plates and other Quantum Surface radiators.

Fan Mounting and Included Hardware

Supports six 120mm fans in push, pull, or push-pull configurations using the included M4 Phillips screws. EK recommends fans with sealed-edge frames for best results. The core design prevents damage if longer screws are accidentally used.

EK-Quantum Surface P240M X-Flow specifications

General
BrandEK Water Blocks
Manufacturer part no.3831109838389
EAN3831109838389
Radiator Specifications
Fin Density (FPI)18 FPI
Pressure tested (up to)1 Bar
Type
Radiator typeCrossflow / X-Flow
Fan Support
Fan Compatibility6x 120 mm
Fan / radiator mountingM4 thread
Water Cooling
Water cooling connectors8x G1/4"
Lighting
Lighting / RGBNo
Color
Primary ColorBlack
Secondary ColorSilver, White
Materials
MaterialsAluminum, Brass, Copper, Stainless steel
Heat Sink MaterialAluminum
Dimensions
Length / Depth300 mm
Width130 mm
Height44 mm
Weight1250 g
Radiator Size240 mm

Specifications come from the manufacturer and can change without notice. Check the box contents and compatibility before ordering; our team answers questions within one business day.

Shipping & returns

Delivery to the United States: $39.90DHL Express Worldwide · arrives Wed, Nov 11 – Mon, Nov 16 if paid today

Ships from our warehouse in Germany: in stock, it leaves within 1–2 business days, tracked to the door.
ToBusiness daysThis item
GermanyDHL Paket1–2$5.90
Other EU countriesDHL Parcel International2–8$11.90–$15.90
UK, Switzerland and NorwayDHL Parcel International3–7$24.90
United States and CanadaDHL Express Worldwide2–5$39.90
Asia and the Middle EastDHL Express Worldwide2–5$49.90
Australia and New ZealandDHL Express Worldwide3–6$59.90
  • Discreet packaging Plain, unbranded box — no crypto or brand references outside
  • Returns 30 days for unused items in original packaging; faulty items are on us
Rates and delivery times by country

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