# Watercool Heatkiller IV for Radeon RX 5700 / XT - Acetal full-cover GPU water block

**URL:** https://aio.lv/en/product--watercool-15638--4598132
**Data updated:** 2026-03-07 14:51 (EET)
**Category:** CPU Coolers & PC Cooling Systems
**Manufacturer:** Watercool
**Manufacturer code:** 15638
**EAN:** 4251312603892
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 156.49 €
**Prices and availability valid until:** 2026-07-29 23:59
**Price without VAT (21%):** 129.33 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--watercool-15638--4598132

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 20.07.2026 | free |
| Pickup points | 23.07.2026 | 1.89 EUR |
| Courier delivery to door | 23.07.2026 | 4.99 EUR |

## Summary description

Full-cover Watercool Heatkiller IV GPU water block designed for AMD Radeon RX 5700 and RX 5700 XT graphics cards. Constructed with an acetal top and precision-machined copper base to transfer heat from GPU, VRAM and VRM areas to liquid cooling. Fits reference PCB layouts, provides low thermal resistance and is intended for custom liquid cooling loops in gaming and workstation systems.

## Long description

The Watercool Heatkiller IV for Radeon RX 5700 / XT is a full-cover GPU water block engineered to cool AMD Radeon RX 5700 and RX 5700 XT reference-design graphics cards. It combines an acetal top with a precision-machined copper base to remove heat from the GPU core, surrounding VRAM and VRM components and transfer it efficiently into a liquid-cooling loop. The block is intended for custom loop systems in gaming PCs and workstations where reduced GPU temperatures and quieter operation are required.
Advantages
This full-cover design provides direct liquid contact over the GPU area and targeted cooling for memory and voltage regulation modules, resulting in low thermal resistance and uniform heat extraction across the PCB. The solid copper cold plate ensures high thermal conductivity while the acetal top offers chemical resistance and a sealed interface for coolant flow. The block is manufactured for compatibility with reference PCB layouts, enabling straightforward installation on supported Radeon RX 5700 and RX 5700 XT cards without modifying the GPU board.
Suitable for
 Custom liquid-cooled gaming rigs using Radeon RX 5700 / RX 5700 XT
 Workstation systems requiring stable GPU temperatures under sustained load
 Silent PC builds where air-cooling noise should be minimized
 Overclocking setups that need improved thermal headroom on GPU and VRM
Key specifications
 Cooling type: full-cover GPU water block for liquid cooling loops
 Top material: acetal (durable, chemically resistant)
 Cold plate material: nickel-free copper, precision-machined
 Cooling target: GPU core, VRAM, VRM areas on reference-layout RX 5700 / RX 5700 XT
 Mounting: designed to fit reference PCB mounting points for supported cards
 Flow ports: standard G1/4-compatible threaded ports for fittings
How to use
Install the Watercool Heatkiller IV in a drained and prepared custom water-cooling loop. Remove the graphics card shroud and existing cooler according to the card manufacturer’s service instructions, then align the block to the reference PCB mounting points and secure it with the supplied mounting hardware. Ensure thermal pads or paste are correctly placed on memory and VRM contact areas and that the copper base makes firm contact with the GPU die. Connect the block to the loop using appropriate G1/4 fittings and perform a leak test before powering the system.
Usage recommendations
Use corrosion-inhibited coolant compatible with copper and acetal materials and maintain regular loop maintenance including coolant replacement and leak checks. Verify that your Radeon RX 5700 / RX 5700 XT card matches a reference PCB layout before installation. For best results, combine the block with adequate radiator capacity and a pump delivering steady flow to maintain low GPU and VRM temperatures during heavy loads.

## Specifications

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 1.08 kg |

## FAQ

### How much does the Watercool Heatkiller IV for Radeon RX 5700 / XT cost, and is it available for purchase?

The price is 156.49 € (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 20.07.2026 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 IV for Radeon RX 5700 / XT 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/4598132/68521685_large.webp