A5500 Rack Front
Pro workstation

EK-Pro GPU WB RTX A5500 Rack Nickel + Inox

Product EAN: 3831109904770
Compatibility
NVIDIA RTX™ A5500
Form factor
rack
Overview

RTX A5500 Rack

The EK-Pro GPU WB RTX A5500 Rack Nickel + Inox is a single-slot water block for the NVIDIA RTX™ A5500 designed to fit FHFW server chassis. The Open Split-Flow cooling engine covers the GPU die, VRAM, and VRM and is particularly suited to multi-GPU setups where even coolant temperature distribution across all cards is required.

The block features a nickel-plated copper base and stainless-steel top, an integrated I/O plate, and a 45°-angled terminal block with two G1/4″ ports for integration with EK-Pro QDC kits. The retention backplate provides PCB rigidity and passive VRM cooling. NVLink connector compatibility is maintained.

Side-mounted standoffs ensure secure GPU mounting during chassis transport. EPDM O-ring sealing and pre-installed brass standoffs are included throughout.

RTX A5500 Rack
Key Engineering

Three design decisions worth calling out

Open Split-Flow for multi-GPU setups

The Open Split-Flow geometry produces even pressure distribution across the die contact surface. In multi-GPU manifold-fed setups, the block is designed to operate with reversed water flow where required, ensuring consistent coolant temperature across all cards in the chassis.

FHFW single-slot with NVLink clearance

The block fits a single PCIe x16 slot in FHFW server chassis. The integrated I/O plate and retention backplate maintain NVLink connector geometry, supporting dual-GPU NVLink configurations. Side-mounted standoffs prevent PCIe slot flex 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.

Technical data

Full datasheet

Compatibility NVIDIA RTX™ A5500
Form factor FHFW rack (single PCIe x16 slot)
Dimensions 311 × 141.2 × 23.5 mm
Mass 1.643 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 3831109904770

All figures measured at supplier level. Third-party independent measurement reports are available on request under NDA.

Technical drawing

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.

Top & side view, in millimetres

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.

Compatibility

NVIDIA RTX™ A5500

In the Box

Shipped contents

  • · EK-Pro GPU WB RTX A5500 Rack - 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
Related

Other related products

Specifying this block into a loop?

LM TEK d.o.o. · Pod Lipami 10 · 1218 Komenda · Slovenia

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