EK-Pro GPU WB RTX A5500 Rack Nickel + Inox
Product EAN: 3831109904770- Compatibility
- NVIDIA RTX™ A5500
- Form factor
- rack
- SKU
- EK-Pro GPU WB RTX A5500 Rack Nickel + Inox
- Dimensions
- 311 × 141.2 × 23.5 mm
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.
Product details
Single-slot efficient cooling
Single PCIe x16 slot fit in FHFW server chassis – maximises card density in multi-GPU rack deployments.
Multi-GPU optimised
Open Split-Flow cooling engine provides even coolant temperature distribution across multiple cards in a manifold-fed loop.
NVLink compatible
Retention backplate geometry maintains NVLink connector clearance for dual-GPU NVLink configurations.
Integrated I/O plate
I/O plate integrated into the block body for space-efficient chassis rear panel integration.
Retention backplate
Provides PCB rigidity and passive cooling to the VRM area on the reverse of the board.
QDC kit compatible
45°-angled terminal block with two G1/4″ ports integrates directly with EK-Pro QDC kits and manifolds.
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.
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 are 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.
NVIDIA RTX™ A5500
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
