Overview
Details
The EK-Quantum Vector³ Astral RTX 5090 – Plexi represents the pinnacle of high-performance liquid cooling, designed specifically for the ASUS ROG Astral GeForce RTX™ 5090 32GB GDDR7 and ASUS ROG Astral GeForce RTX™ 5090 32GB GDDR7 OC Edition. Featuring an improved, larger cooling engine, higher-performance thermal pads, and a new gasket design to optimize reliability and aesthetics, this water block ensures exceptional cooling efficiency, even under extreme workloads.
Enhanced Cooling Engine for Unmatched Performance
The revised cooling structure of the Vector³ Astral RTX 5090 maximizes heat transfer with an expanded fin array and optimized coolant flow paths. It actively cools the GPU core, VRAM, power stages, and passively cools PCB hotspots through the included backplate.
Optimized Open Split-Flow Cooling Engine – Superior flow distribution for uniform cooling and reduced restriction.
Low Hydraulic Restriction – Enables compatibility with both high- and low-flow pump systems.
Ideal for Overclocking & High-Load Applications – Keep your GPU running at peak performance with sustained low temperatures.
Premium Materials and Precision Engineering
Built with high-quality components for durability and peak performance:
- Nickel-Plated Electrolytic Copper Coldplate – Maximizes thermal conductivity and longevity.
- CNC-Machined Cast Acrylic Top – Showcases the coolant while offering a crystal-clear aesthetic.
- Black Anodized Aluminum Backplate – Increases cooling surface area and enhances structural integrity.
- Single O-Ring Seal Design – Reduces potential failure points for long-term reliability.
- New Gasket System – Prevents solid coolant particles from collecting between the coldplate and acrylic top, ensuring optimal performance.
Pre-Cut High-Performance Thermal Pads
The Vector³ Astral RTX 5090 comes with next-gen thermal pads that are partially pre-cut for seamless installation and optimized contact, allowing for superior heat dissipation from VRAM and power delivery components.
Included Full-Coverage Backplate
Every Vector³ Astral RTX 5090 water block includes a backplate, designed to:
Passively cool PCB hotspots, including VRAM, core, and VRM sections.
Provide a sleek, modern look with its black anodized aluminum finish.
Simplify installation with pre-installed captive backplate screws, eliminating guesswork.
This L-shaped backplate profile seamlessly encloses the GPU for a clean, unified aesthetic while adding an additional layer of cooling performance.
EK-Matrix7 Support – For Perfect Loop Planning
The EK-Quantum Vector³ Astral RTX 5090 follows EK-Matrix7, a standard that simplifies liquid cooling loop assembly by aligning ports and spacing components for intuitive tube routing.
Perfect Integration with EK-Quantum Reflection² distribution plates.
Straightforward Tube Bending & Loop Planning – Less time spent measuring and adjusting.
Seamless Vertical & Horizontal GPU Mounting – A clean, professional look with minimal effort.
Whether mounting the GPU vertically or horizontally, Matrix7 ensures a hassle-free, precise build.
Addressable D-RGB Compatibility
Addressable D-RGB LED lighting is deployed on the longest edge of both top and backside water blocks for improved uniformity and brightness. The PCB and diodes are concealed inside a clean aluminum extrusion. The individually addressable RGB LED is compatible with popular RGB sync technologies from all major motherboard manufacturers. The arrow marking on the 3-pin D-RGB LED connector is to be aligned with the +5V marking on the D-RGB (addressable) header (Pinout: +5V | Data | Blocked | Ground).
Technical Specifications:
- Dimensions (L x H x W): 277 x 156 x 27 mm
- D-RGB LED Count: 14
- D-RGB Connector: 3-pin 5V digital LED header
- D-RGB Cable Length: 500 mm
Compatibility:
- ASUS ROG Astral GeForce RTX 5090 32GB GDDR7
- ASUS ROG Astral GeForce RTX 5090 32GB GDDR7 OC Edition
Specifications
| Dimensions | Length / Depth 156 mm Width 277 mm Height 27 mm Colour Primary Colour Black Transparent (Matt/Frosted) Lighting Lighting / RGB Yes Lighting Colour RGB Graphics Card GPU Series RTX 50 Series Compatibility GPU Compatibility NVIDIA GeForce RTX 5090 Materials Base Plate Material Aluminium Material Top Piece / Lid Acrylic Internal Ports RGB / LED connectors yes |
|---|---|
| Length / Depth | 156 mm |
| Width | 277 mm |
| Height | 27 mm |
| Primary Colour | Black Transparent (Matt/Frosted) |
| Lighting / RGB | Yes |
| Lighting Colour | RGB |
| GPU Series | RTX 50 Series |
| GPU Compatibility | NVIDIA GeForce RTX 5090 |
| Base Plate Material | Aluminium |
| Material Top Piece / Lid | Acrylic |
| RGB / LED connectors | yes |
Specifications
| Manufacturer | EK Water Blocks |
|---|---|
| Manufacturer part number | 3831129901117 |
| OcUK SKU | COO-EKW-04578 |
| EAN | 3831129901117 |
| Base Plate Material | Aluminium |
| GPU Series | RTX 50 Series |
| Lighting Colour | RGB |
| Lighting / RGB | Yes |
| Primary Colour | Black Transparent (Matt/Frosted) |
| RGB / LED connectors | yes |
Product reviews
No review for this product yet.
Warranty & Delivery
Click & Collect
Collect from OcUK HQ, or one of thousands of DPD Pickup Points around the UK.*
Full Delivery InformationIE Delivery
We ship to Ireland, with tax and customs included in the price you pay.*
Full Delivery Information*Exclusions and product restrictions apply
EK Water Blocks EK-Quantum Vector3 Astral RTX 5090 D-RGB Graphics Card Water Block
3831129901117, GPU Water Block for 5090 Cards, Compatible with ASUS ASTRAL 5090, DRGB Lighting, 2 Year Warranty Details The EK-Quantum Vector³ Astral RTX 5090 – Plexi represents the pinnacle of hig...
Only available to UK and IE
Order within — with Premium Delivery (arriving 1 working day, Mon–Fri) for UK mainland delivery.
From £21.66/mo over 12 months.Learn more
Klarna Pay in 3 interest-free instalments, or pay in 30 days.





