# Watercool Heatkiller V GPU Water Block for RX 6800/6900XT, ARGB, Copper-Acrylic

**URL:** https://aio.lv/en/product--watercool-15653--4598153
**Data updated:** 2026-03-07 14:51 (EET)
**Category:** CPU Coolers & PC Cooling Systems
**Manufacturer:** Watercool
**Manufacturer code:** 15653
**EAN:** 4251312605292
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 188.49 €
**Prices and availability valid until:** 2026-08-01 23:59
**Price without VAT (21%):** 155.78 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--watercool-15653--4598153

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 24.07.2026 | free |
| Pickup points | 29.07.2026 | 1.89 EUR |
| Courier delivery to door | 29.07.2026 | 4.99 EUR |

## Summary description

Watercool Heatkiller V is a GPU water block designed for AMD RX 6800 and RX 6900XT graphics cards. It features a copper cold plate paired with an acrylic top and integrated ARGB lighting. The block provides direct liquid cooling to the GPU and surrounding components, reducing temperatures for overclocking, quiet operation, and long-term reliability in custom water-cooling loops.

## Long description

The Watercool Heatkiller V GPU water block for RX 6800/6900XT is a full-coverage liquid cooling solution engineered for AMD Radeon RX 6800 and RX 6900 XT reference-layout graphics cards. It combines a copper cold plate with an acrylic top and integrated ARGB lighting to deliver direct coolant contact across the GPU core, memory modules and VRM area. The design aims to lower temperatures for sustained performance, reduce fan noise in air-free configurations and increase component longevity when used in custom water-cooling loops.
Advantages
The copper cold plate ensures efficient heat transfer from the GPU die and adjacent components, while the acrylic top provides visual access to the coolant flow and ARGB illumination. Direct liquid cooling across critical surfaces reduces thermal throttling and supports higher stable clock speeds under load. The block's construction is compatible with standard custom-loop fittings and mounting points for the specified AMD PCB layout, delivering a balance of cooling performance, reliability and aesthetic integration in a water-cooled system.
Suitable for
 Custom water-cooling loops for AMD RX 6800 and RX 6900 XT graphics cards
 Users seeking lower GPU and VRM temperatures for overclocking
 Quiet PC builds that reduce or eliminate air cooling on the GPU
 Systems where component longevity and thermal stability are priorities
Key specifications
 Compatibility: Designed for AMD Radeon RX 6800 and RX 6900 XT reference-layout PCBs
 Cold plate material: Electrolytically pure copper for optimized thermal conductivity
 Top material: Transparent acrylic for visual coolant flow and ARGB diffusion
 Lighting: Integrated ARGB illumination with standard 3-pin/5V control header (verify motherboard/controller compatibility)
 Coverage: Full-cover design cooling GPU core, memory modules and voltage regulation components
 Fittings: G1/4 threaded ports compatible with common custom-loop fittings
How to use
Install the water block following the manufacturer's mounting instructions matched to the RX 6800/6900 XT reference PCB. Prepare the graphics card by removing the original air cooler and cleaning contact surfaces. Apply an appropriate thermal interface material between the GPU die and the copper cold plate and ensure thermal pads are positioned for memory and VRM contact where required. Mount the block securely using the supplied hardware, connect G1/4 fittings and integrate the block into the loop with proper coolant, tubing and pump. Connect the ARGB header to a compatible controller or motherboard header for lighting control.
Usage recommendations
Before powering the system, perform a pressure or leak test of the entire loop. Use coolant compatible with copper and acrylic components and follow recommended torque values for fittings and mounting screws. Monitor temperatures after first operation to confirm proper contact and cooling performance, and periodically inspect for leaks or degradation of thermal interfaces.

## Specifications

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 1.41 kg |

## FAQ

### How much does the Watercool Heatkiller V GPU Water Block for RX 6800/6900XT cost, and is it available for purchase?

The price is 188.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 24.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can Watercool Heatkiller V GPU Water Block for RX 6800/6900XT be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Watercool products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Watercool service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: weight, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

https://aio.lv/img/cache/product/4598153/68521410_large.webp