# Watercool Heatkiller V full-cover GPU water block for AMD RX 6800/6900XT, ARGB, Acetal + Nickel

**URL:** https://aio.lv/en/product--watercool-15658--4598157
**Data updated:** 2026-03-07 14:51 (EET)
**Category:** CPU Coolers & PC Cooling Systems
**Manufacturer:** Watercool
**Manufacturer code:** 15658
**EAN:** 4251312605346
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 193.99 €
**Prices and availability valid until:** 2026-07-12 23:59
**Price without VAT (21%):** 160.32 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--watercool-15658--4598157

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 08.07.2026 | free |
| Pickup points | 13.07.2026 | 1.99 EUR |
| Courier delivery to door | 13.07.2026 | 4.99 EUR |

## Summary description

Watercool Heatkiller V is a full-cover GPU water block designed for AMD RX 6800 and RX 6900XT reference PCB layouts. Constructed with an acetal top and nickel-plated copper cold plate, it features ARGB lighting for visual customization. The block provides direct cooling of GPU, VRAM and VRM areas, intended for custom liquid-cooling loops in high-performance gaming and workstation systems.

## Long description

Watercool Heatkiller V full-cover GPU water block for AMD RX 6800/6900XT, ARGB, Acetal + Nickel is a full-cover liquid-cooling block engineered for reference-layout AMD RX 6800 and RX 6900XT graphics cards. The block combines an acetal top with a nickel-plated copper cold plate to transfer heat efficiently from the GPU core, VRAM and VRM components into a custom loop. Integrated ARGB lighting provides configurable illumination for system aesthetics while the full-cover design ensures direct contact with all primary heat sources on the PCB.
Advantages
The Heatkiller V offers precise thermal contact through a nickel-plated copper cold plate, improving heat dissipation compared with air cooling. Its acetal top provides chemical resistance and compact styling, and the full-cover layout cools GPU, memory chips and voltage regulation modules in a single unit. ARGB lighting adds system customization without affecting thermal performance. The block is intended for installation in custom liquid-cooling loops and supports common G1/4" fittings for loop integration.
Suitable for
 High-performance gaming systems using AMD RX 6800 or RX 6900XT reference PCB cards
 Workstations requiring lower GPU temperatures and stable VRM operation
 Custom liquid-cooling loops where full-cover GPU cooling is desired
 PC builds incorporating ARGB lighting and visible coolant routing
Key specifications
 Compatibility: Reference PCB layout for AMD RX 6800 and RX 6900XT
 Cold plate material: Nickel-plated copper for improved thermal conductivity
 Top material: Acetal (black) for chemical resistance and finish
 Cooling coverage: Full-cover — GPU core, VRAM and VRM areas
 Lighting: Integrated ARGB with standard 3-pin/5V header compatibility
 Fittings: G1/4" threaded ports for standard liquid-cooling fittings
How to use
Prepare the graphics card by removing the original cooler and cleaning the GPU, memory and VRM surfaces of thermal paste and residue. Place appropriate thermal pads on memory and VRM areas according to the block's instructions, then align the Heatkiller V over the PCB so the cold plate contacts the GPU core and other heat sources. Secure the block with the supplied mounting hardware and torque recommendations to ensure even pressure. Connect ARGB cable to a compatible 5V header or controller and route inlet/outlet fittings into your existing custom loop. Leak-test the loop before powering the full system.
Usage recommendations
Use high-quality thermal pads that match the thickness specified by the manufacturer and apply a thin, even layer of thermal paste on the GPU core. Verify compatibility with your card's exact PCB revision and follow standard leak-test procedures for at least several hours before normal operation. For optimal results, combine the block with a well-balanced pump, radiator capacity suitable for your system heat load, and corrosion-inhibiting coolant.

## Specifications

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 1.35 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 193.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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 08.07.2026 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/4598157/68529451_large.webp