# Connection terminal OEM EK Water Blocks 3831109903445 — Acrylic, Transparent, 41×72×23 mm

**URL:** https://aio.lv/en/product--ek-water-blocks-3831109903445--10820335
**Data updated:** 2026-02-18 06:45 (EET)
**Category:** CPU Coolers & PC Cooling Systems
**Manufacturer:** ek water blocks
**Manufacturer code:** 3831109903445
**EAN:** 3831109903445
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 54.99 €
**Prices and availability valid until:** 2026-08-16 23:59
**Price without VAT (21%):** 45.45 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ek-water-blocks-3831109903445--10820335

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 31.07.2026 | free |
| Pickup points | 05.08.2026 | 1.79 EUR |
| Courier delivery to door | 05.08.2026 | 4.99 EUR |

## Summary description

Connection terminal by OEM for EK Water Blocks (model 3831109903445). Acrylic construction with transparent finish. Compact dimensions 41 mm (W) × 72 mm (D) × 23 mm (H). Designed as a computer cooling system accessory for routing or joining coolant channels. Suitable for custom water-cooling builds where a clear, durable terminal is needed.

## Long description

Connection terminal OEM EK Water Blocks 3831109903445 is a transparent acrylic terminal designed for use in custom PC liquid cooling systems. Machined from cast acrylic (plexi), the terminal measures 41×72×23 mm and serves as a compact interface to route or join coolant channels between the GPU water block and the active backplate in compatible EK-Quantum Vector² Strix/TUF RTX 4080 and 4090 ABP setups. The part replaces the original black POM acetal terminal when a clear, glass-like finish is required and integrates with the DirectLink flow concept used in multiple-block solutions.
Advantages
The acrylic construction provides a clear view of coolant flow and a smooth finish that matches other plexi components. CNC machining ensures precise dimensions and clean sealing faces for reliable fitting with existing block and backplate assemblies. The terminal supports the conventional 4-port DirectLink layout, enabling flexible serial or parallel connections from adjacent or opposing sides. It is compact and compatible with setups that require space-efficient routing between the GPU water block and active backplate.
Suitable for
Custom water-cooled PC builds using EK-Quantum Vector² Strix/TUF RTX 4080 or 4090 ABP sets
Setups requiring a transparent terminal for visual coolant inspection
Configurations with vertical GPU mounts or distribution plates where routing flexibility is needed
Key specifications
Material: Cast acrylic (plexi)
Finish: Transparent
Dimensions (W×D×H): 41 × 72 × 23 mm
Flow layout: 4-port DirectLink-compatible terminal geometry
Manufacturing: CNC-machined
How to use
Install the terminal in place of the stock black acetal terminal on compatible EK-Quantum Vector² Strix/TUF RTX 4080 or 4090 ABP assemblies by following the water block and backplate manufacturer instructions. Transfer any required brass inserts and magnetic covers from the original terminal when your ABP set uses those components; these inserts and covers are not included with this acrylic terminal. Ensure sealing surfaces are clean and use appropriate gaskets or O-rings from the original assembly to maintain leak-free connections. Tighten fasteners to the specified torque values and confirm correct alignment of flow ports before filling the loop.
Usage recommendations
Use original brass inserts and magnetic covers from the OEM terminal to preserve DirectLink functionality and branding rotation options. Inspect O-rings and seals during replacement and perform a pressure or leak test before powering the system. Avoid strong solvents on acrylic surfaces and clean with a soft, lint-free cloth and mild soapy water to prevent scratching.

## Specifications

| Feature | Value |
|---|---|
| Connecting thread | 1/4 |

### Performance

| Feature | Value |
|---|---|
| Type | Connection terminal |
| Compatibility | EK-Quantum Vector² Strix/TUF RTX 4080 ABP set, EK-Quantum Vector² Strix/TUF RTX 4090 ABP set |

### Design

| Feature | Value |
|---|---|
| Product colour | Transparent |
| Material | Acrylic |

### Weight & dimensions

| Feature | Value |
|---|---|
| Height | 23 mm |
| Width | 41 mm |
| Depth | 72 mm |

## FAQ

### How much does the Connection terminal OEM EK Water Blocks 3831109903445 cost, and is it available for purchase?

The price is 54.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 6 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 31.07.2026 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. All transactions are 100% secure and encrypted.

### 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 ek water blocks 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 ek water blocks 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: type, product colour, 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/10820335/60156886_large.webp