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.
Download resources
Product documentation for specification, integration, and installation is available below. Revision numbers are printed on page one of each file.
A CAD STEP file of the full block assembly is available to partners on request - contact LM TEK engineering before specifying at fleet scale.
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
