Bykski SPD External Thermal Exchange Liquid Cooling Unit - 4 GPU Optimized Thermal Solution - (B-1080-SPD-CEC-X)
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Bykski SPD External Thermal Exchange Liquid Cooling Unit - 4 GPU Optimized Thermal Solution - (B-1080-SPD-CEC-X)

B-1080-SPD-CEC-X Pre-order
$2,159.99USDFree shipping, lower 48

US import duties and tariffs are included in every price.

Ships directly from our Idaho inventory. You avoid overseas sellers, processing delays, international shipping, customs hold-ups and additional fees.
Pre-order — normally stocked
Expect dispatch in about 20 business days
Latest 24 business days. Cancel any time before it ships for a full refund.
A regular catalogue item — we're between shipments. Your order is filled before any stock goes back on the website.
What this works with

Check these against your build before you order. If anything here does not match what you have, ask us first — it is cheaper than a return.

ONLY Compatible with

  • Open-loop PC liquid cooling systems using G1/4” fittings; GPU water blocks and CPU blocks from Bykski . Ensure adequate case/desk space for external mounting and that your loop supports external routing.

Not sure? Send us your model/part number and we'll confirm it for you.
Not ready to pre-order?
Why buy it here
US warranty, handled in Boise
Claims are settled here, by the people who sold it to you.
Exclusive US distributor
The official US source for Bykski, so every part is genuine.

Before you install it

This is a component, not an assembly — how it goes in depends on the loop it is joining. What does not change is the last step: leak test before power. Run the pump on a bench supply with the rest of the system unpowered. 24 hours is the standard, an hour is the minimum.

Water cooling parts are designed for self-installation by qualified users. Damage caused by installation error isn't covered — if you're unsure at any step, ask before you power the loop.

About this part

This B-1080-SPD-CEC-X external thermal exchange unit is a high-capacity liquid cooling solution optimized for up to 4 discrete GPUs. Designed as a standalone radiator/pump/reservoir assembly, it offloads heat from dense multi-GPU loops, enabling lower operating temperatures, quieter acoustics, and improved stability under sustained compute workloads. By pairing this unit with your internal water blocks, you can significantly reduce coolant temperatures and help extend component lifespan.

A high-flow internal plumbing layout supports multi-block loops with minimal restriction. The unit can be integrated into parallel or serial loop designs. In multi-block setups, appropriate manifolds or bridges may be required depending on your GPU block configuration and case routing.

In the box
  • External Thermal Exchange Unit (radiator/pump/reservoir assembly)
  • Power and control cables for pump/fans/LCD
If the gallery shows a parts diagram, that diagram is the source of truth for what ships.
Datasheet
Core FunctionExternal Thermal Exchange Liquid Cooling Unit (radiator + pump + reservoir assembly+LCD Control)
OptimizationDesigned for up to 4 GPU liquid-cooled systems
RadiatorHigh surface area 1080-class external radiator 
PumpHigh-flow D5-class pump
ReservoirIntegrated clear reservoir for easy fluid viewing
MaterialsAluminum frame, All Copper radiator core, Acrylic (PMMA) reservoir window
FittingsG1/4” threaded inlet and outlet ports
SKUB-1080-SPD-CEC-X

What buyers said

Left by people who bought this part here. Compatibility reports are the useful ones — if you fitted it, say which board.

Customer Reviews

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Questions people ask about this part

Answers specific to B-1080-SPD-CEC-X. If yours isn't here, ask — we'd rather talk you out of the wrong part than sell you one.

What does this part fit?
This part is specified by what it connects to, not by a card model:

ONLY Compatible with

  • Open-loop PC liquid cooling systems using G1/4” fittings; GPU water blocks and CPU blocks from Bykski . Ensure adequate case/desk space for external mounting and that your loop supports external routing.

Check those against your build before you order. If anything does not match, ask us first — it is cheaper than a return. Part number B-1080-SPD-CEC-X.

Is it in stock, and when will it ship?
It is a normally stocked item currently on pre-order — we are between shipments. Orders dispatch from Boise, Idaho within 20 business days, and pre-orders are filled before any stock goes back on the website.
Can I cancel my pre-order?
Yes. A pre-order can be cancelled any time before it ships, for a full refund. Nothing is committed until it leaves Boise.
Will I pay import duties or customs charges on delivery?
Not on a US order. US import duties and tariffs are already included in the price, so nothing is collected at the door and there is no brokerage fee. Orders shipped outside the US may owe that country's customs fees and duties.
Who handles the warranty?
BYKSKI.US, the exclusive US distributor, from Boise, Idaho. Claims are handled domestically rather than returned to an overseas factory. Damage caused by installation error is not covered.
Is shipping free?
Yes — shipping is included at this price for addresses in the lower 48 US states.
Are printed instructions included?
No printed manual is included. Installation references are in the product gallery images, and the install guides on this site cover the process step by step.
Do I need anything else to use it?
Check the parts list above against what you already have. If you are building a loop from scratch, send us the full parts list and we will tell you what is missing before you order.

Ask us before you order

Send your exact hardware model and we'll confirm the right part before you spend $2,159.99 — or tell you honestly that this isn't the one.

Returns are accepted within 30 days and are easy to start in the support center. Unopened items can be returned for store credit with no restocking fee; other returns carry a restocking fee, higher for items that have been installed or used.

Ask about compatibility