Bykski Full Coverage GPU Water Block w/ Integrated Active Backplate for ASUS TUF RTX 3090 24G GAMING (N-AS3090TUF-TC-V2)

Bykski Full Coverage GPU Water Block w/ Integrated Active Backplate for ASUS TUF RTX 3090 24G GAMING (N-AS3090TUF-TC-V2)
Includes CNC backplate
In this gallery — tap to open full size
N-AS3090TUF-TC-V2 Special order
$359.99USDFree 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.
Special order
Expect dispatch in about 45 business days
80% cancellation fee applies.
This is not a part we stock. We source it specifically for your order and ship it from Boise, ID. It can't go back to stock, so triple-check compatibility first.
Fits these 4 boards, and only these

This part is machined for the 4 boards listed below — nothing else. Board revisions and partner designs differ, so match your exact model against the list before you order.

  • ASUS NVIDIA 3080 - TUF GAMING GEFORCE RTX 3080 Ti 12GB
  • ASUS NVIDIA 3080 - TUF GAMING GEFORCE RTX 3080 Ti 12GB OC
  • ASUS NVIDIA 3080 - TUF GAMING GEFORCE RTX 3080 10GB
  • ASUS NVIDIA 3090 - TUF GAMING GEFORCE RTX 3090 24GB
Not sure? Send us your model/part number and we'll confirm it for you.
Fittings for this block

PrimoChill SX fittings for the G1/4 ports, in stock in Boise. Pick a finish and how many you need; 6+ in any mix and the price drops.

Pick a finish, then add quantities.
Building your first loop? Plan the rest of it
Why buy it here
US warranty, handled in Boise
Claims are settled here, by the people who sold it to you.
Custom watercooling since 2002
PrimoChill, from Boise, Idaho.

About this part

This N-AS3090TUF-TC-V2 full-coverage block directly cools the video card core (GPU), graphics memory (RAM), and voltage regulator modules (VRM). By directly cooling these components, you can achieve great temperatures and reach higher overclocks while extending the overall lifespan of your card by running at lower temperatures.

A high-flow design allows multiple blocks to run in series. The block can be configured as parallel or serial designs. In multi-block setups, an additional bridge may be needed, depending on your setup.

In the box
  • GPU Water Cooling Block
  • Installation Hardware, including thermal paste
  • 5v Addressable RGB (RBW)
  • (Warning: Addressable RGB (RBW) is 5V and is ONLY compatible with Addressable RGB (RBW) components. RGB is 12V and is ONLY compatible with RGB components. Mix and match will NOT work and will cause damage.
If the gallery shows a parts diagram, that diagram is the source of truth for what ships.
Datasheet
Block MaterialNickel Electroplated High Purity Copper / PMMA (Acrylic)
Backplate MaterialNickel Plated Copper with Acrylic Cover
SKUN-AS3090TUF-TC-V2

What buyers said

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

Customer Reviews

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What installing it actually involves

Three steps, in the order that matters. The one people get wrong is the first.

01
Confirm the hardware

This block fits 4 boards:

  • ASUS NVIDIA 3080 - TUF GAMING GEFORCE RTX 3080 Ti 12GB
  • ASUS NVIDIA 3080 - TUF GAMING GEFORCE RTX 3080 Ti 12GB OC
  • ASUS NVIDIA 3080 - TUF GAMING GEFORCE RTX 3080 10GB
  • ASUS NVIDIA 3090 - TUF GAMING GEFORCE RTX 3090 24GB

Match your exact model — not the family.

02
Mount it dry

Thermal interface material as supplied. Even mounting pressure, correct bracket orientation, no over-torquing.

03
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.

Custom water cooling is installed by you, at your own risk. We are not responsible for leaks, or for damage to your parts or system. If you're unsure at any step, ask before you power the loop.

Questions people ask about this part

Answers specific to N-AS3090TUF-TC-V2. 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?

It is machined for 4 boards:

  • ASUS NVIDIA 3080 - TUF GAMING GEFORCE RTX 3080 Ti 12GB
  • ASUS NVIDIA 3080 - TUF GAMING GEFORCE RTX 3080 Ti 12GB OC
  • ASUS NVIDIA 3080 - TUF GAMING GEFORCE RTX 3080 10GB
  • ASUS NVIDIA 3090 - TUF GAMING GEFORCE RTX 3090 24GB

These are machined to a specific hardware layout, so match your exact model rather than the family before ordering. Part number N-AS3090TUF-TC-V2.

Is it in stock, and when will it ship?
This is a special order — not a part we stock. We source it for your order specifically and ship from Boise, Idaho within 45 business days.
Can I cancel a special order?
Yes, but canceling a special order carries an 80% cancellation fee — the part is ordered in specifically for you and cannot be returned to stock. Confirm compatibility with us before committing.
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?
PrimoChill, from Boise, Idaho. Every claim is handled directly by our support team rather than returned to an overseas factory. Installation is at your own risk: we are not responsible for leaks or damage to other hardware.
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?
A water block is one component of a loop: you also need a pump, a radiator, fittings, tubing and coolant. If you are starting from nothing, an AIO or a distro-plate kit is the shorter route — ask and we will spec it.

Ask us before you order

Send your exact hardware model and we'll confirm the right part before you spend $359.99 — 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