EK-Pro GPU WB RTX A5500 Nickel + Inox
Product EAN: 3831109904695- Compatibility
- NVIDIA RTX™ A5500
- Form factor
- workstation
RTX A5500
The EK-Pro GPU WB RTX A5500 Nickel + Inox is a high-performance water block for the NVIDIA RTX™ A5500 GPU, cooling the die, VRAM, and VRM under a single cooling engine with low hydraulic flow restriction. Construction is machined from nickel-plated copper and stainless steel for long-term durability.
The block is compatible with NVIDIA NVLink connectors and uses a POM-machined 45°-angled terminal block with two G1/4″ ports for integration with EK-Pro QDC kits and manifolds. An integrated single-slot I/O plate provides sturdiness and chassis rear panel compatibility.
A retention backplate provides structural rigidity and passive cooling to the PCB VRM area. A side-mounted standoff is included for GPU brace applications, ensuring secure mounting during chassis transport and movement.
Three design decisions worth calling out
Low-restriction full-cover design
The block cools the GPU die, VRAM, and VRM under a single cooling engine with low hydraulic flow restriction. This maintains correct thermal performance with a wide range of pump specifications, including modest setups where total loop pressure budget is constrained by multiple blocks in series.
45° angled terminal · NVLink clearance
The 45°-angled POM terminal block routes G1/4″ ports away from the adjacent PCIe slot. The retention backplate and integrated I/O plate maintain NVLink connector geometry, supporting dual-GPU NVLink configurations. A side-mounted standoff provides a brace point for GPU mounting during chassis transport.
Pressure envelope
Working pressure is 2 500 Pa. Maximum rated pressure is 30 000 Pa in loops containing an EK-Pro Pump Reservoir Manifold, and 75 000 Pa in all other configurations. Figures are published at the supplier level and are consistent across the GPU water-block family.
Full datasheet
| Compatibility | NVIDIA RTX™ A5500 |
| Form factor | Full-height workstation (PCIe) |
| Dimensions | 281.8 × 152.6 × 23.5 mm |
| Mass | 1.416 kg |
| Ports | 2 × G1/4″ |
| Base material | Nickel-plated copper |
| Top material | Stainless steel |
| Terminal | POM Acetal, 45° angled |
| Seals | EPDM O-rings |
| Mounting method | Backplate |
| NVLink compatible | Yes |
| Working pressure | 2 500 Pa |
| Max pressure (with EK-Pro PRM) | 30 000 Pa |
| Max pressure (standalone) | 75 000 Pa |
| Operating temperature | 5 – 60 °C |
| EAN | 3831109904695 |
All figures measured at supplier level. Third-party independent measurement reports are available on request under NDA.
Top & side view, in millimetres
Envelope drawing for chassis-integration work. All measurements in mm. Use this to verify clearance to adjacent PCIe slots, to the chassis floor, and to any rear I/O before specifying.
These drawings represent copyrighted material of LM TEK® and they are meant only for your personal use. Drawing supplied by EK-Pro. A CAD step file of the full block assembly is available to partners on request.
Shipped contents
- · EK-Pro GPU WB RTX A5500 - Nickel + Inox workstation and server-grade water block
- · Retention backplate
- · Mounting mechanism with screw-in brass standoffs
- · Necessary mounting screws, nuts, and washers
- · Thermal Interface Material
