EK-Thermosphere is a high-performance universal GPU water block built off EK-Supremacy cooling engine, designed specifically for the use with EK-FC Terminal interconnects in multiple graphics card system.
The Thermosphere cooling engine uses similar, yet refined as per needs of modern microprocessors, fin design as its ancestor. The cooling liquid accelerates through jet plate's nozzle and turbulently continues its path through numerous very thin channels which provide extreme cooling surface area. EK-Thermosphere can also work flawlessly with reversed water flow which does not affect the cooling performance.

The base is made of nickel-plated electrolytic copper, backbone is made from laser cut brushed stainless steel plate while the top is made of quality cast acrylic material. The sealing is ensured by quality rubber washers.
The top also features two pre-drilled slots for 3mm LED diodes.
Screw-in brass standoffs are pre-installed in each exchangeable mounting plate and allow for safe, painless installation procedure. Block is mounted with enclosed M3x4 DIN7985 screws.
G1/4" threaded fittings can be used on both sides of the FC terminal. Up to four EK-Thermosphere water blocks can be used on a single ATX form factor motherboard by using EK-FC Terminal (DUAL, TRIPLE or QUAD type) system or other means of interconnectivity. Please note that EK-FC Bridge & Link system is not compatible with this water block.
GPU compatibility:
EK-Thermosphere series water blocks support the majority of modern nVidia® and AMD® high-end graphics cards via exchangeable mounting plates. The product comes factory pre-fitted with mounting plate G80 (mounting pattern 58x58mm) and ready for use on modern nVidia® GeForce® GTX graphics cards only. Please check compatibility at EK's CoolingConfigurator.
To use this product on AMD and other nVidia graphics cards it is mandatory to purchase additional mounting plates:
- G92: 53x53mm
- R600: 54x54mm
- GF560: 51x61mm
- G200: 61x61mm
Enclosed in the box:
- EK-Thermosphere series water block /w pre-installed G80 mounting plate
- Mounting mechanism
- Necessary mounting screws and washers
- Thermal grease EK-TIM Ectotherm (1g)
- 2x EK plug G1/4"
EK-Quantum Momentum Aorus Z490 Master D-RGB is the new Quantum Line monoblock specifically engineered for the Gigabyte® Aorus Z490 Master motherboard. Featuring the latest generation Velocity cooling engine with low restriction and high performance, this monoblock is equipped with a 3-pin D-RGB (addressable) LED strip and it offers unparalleled aesthetical customization alongside superior performance! The D-RGB LED in the monoblock is compatible with Gigabyte RGB Fusion 2.0 which offers a full lighting customization experience.
EK® Momentum series monoblocks utilize the 5th generation of the award-winning EK® CPU water block cooling engine, further tweaked for performance and optimal coolant flow! This water block directly cools Intel® 1200 socket-type CPU, as well as the power regulation (MOSFET) module. Liquid flows directly over all critical areas, providing the enthusiasts with a great solution for high and stable overclocks. Like with every EK monoblock, the EK-Quantum Momentum Aorus Z490 Master features a high flow design and it can be easily used with the system using weaker water pump or lower pump speed settings as well. The Momentum monoblock also comes with sophisticated addressable D-RGB lightning which connects to a standard 3-pin 5V D-RGB header on the motherboard.
The purest nickel-plated copper available on the market is used for the cold plate which is precisely machined to a dense micro-fin structure. The nickel-plated brass screw-in standoffs are pre-installed and allow for easy installation. Top of the monoblock features a CNC machined glass-like cast acrylic top piece.
The new cooling engine is characterized by the top-integrated jet nozzle which is combined with a thicker jet plate allowing a more precise bow control. The simplified water block structure offers a more optimized coolant flow and easier maintenance, while the jet plate ensures the best contact surface for the CPU.
Unlike other solution on the market, this is a true one-piece, sturdy and reliable liquid cooling product which requires only two connector fittings for proper operation. The enclosed thermal pad is used on voltage regulator modules to improve stability, performance, and prolongs the lifespan of the motherboard. For the CPU, please use the enclosed (electrically non-conductive) thermal grease EK-TIM Ectotherm.
The block is already equipped with 3-pin 5V Addressable D-RGB LED strip which is compatible with the Aorus Z490 Master 3-pin 5V D_LED (Addressable LED Strip) headers. This product is also compatible with D-RGB controllers that support the pinout: +5V, D, Blocked, Ground. The arrow marking on the 3-pin LED connector is to be aligned with the +5V marking on the D_LED (Addressable LED Strip Headers)
Technical specifications:
- D-RGB connector 3-pin 5V digital LED header (Pinout: +5V, D, Blocked, Ground)
Enclosed:
- EK-Quantum Momentum Aorus Z490 Master D-RGB Monoblock
- Mounting mechanism
- Thermal grease EK-TIM Ectotherm
- Thermal pads
Made in Slovenia - Europe!


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