Bykski Armored End Port GPU Water block with Backplate For MSI GeForce RTX 5090D 32G GAMING TRIO OC (N-MS5090DTRIO-X)

Includes CNC backplate

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Bykski Armored End Port GPU Water block with Backplate For MSI GeForce RTX 5090D 32G GAMING TRIO OC (N-MS5090DTRIO-X)

4.0 (2) 4.0 out of 5 stars, 2 reviews Read the reviews

N-MS5090DTRIO-X Only 10 left in Boise, ID

$296.99USDFree shipping, lower 48

US import duties and tariffs are included in every price.

Ships the same business day on orders placed before 2:00 PM MST. Overnight delivery available at checkout.

Ships directly from our Idaho inventory. You avoid overseas sellers, processing delays, international shipping, customs hold-ups and additional fees.

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.

MSI NVIDIA 5090 - MSI GEFORCE RTX 5090D 32GB GAMING TRIO OC
MSI NVIDIA 5090 - MSI GEFORCE RTX 5090 32GB GAMING TRIO OC
MSI NVIDIA 5090 - MSI GEFORCE RTX 5090 32GB SUPRIM OC
MSI NVIDIA 5090 - MSI GEFORCE RTX 5090 32GB VANGUARD SOC

Not sure? Send us your model/part number and we'll confirm it for you.

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.

Exclusive US distributor

The official US source for Bykski, so every part is genuine.

What installing it actually involves

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

Confirm the hardware

This block fits 4 boards:

MSI NVIDIA 5090 - MSI GEFORCE RTX 5090D 32GB GAMING TRIO OC
MSI NVIDIA 5090 - MSI GEFORCE RTX 5090 32GB GAMING TRIO OC
MSI NVIDIA 5090 - MSI GEFORCE RTX 5090 32GB SUPRIM OC
MSI NVIDIA 5090 - MSI GEFORCE RTX 5090 32GB VANGUARD SOC

Match your exact model — not the family.

Mount it dry

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

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.

About this part

This N-MS5090DTRIO-X 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 MaterialBlack Anodized Aluminum (not in contact with coolant)

SKUN-MS5090DTRIO-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.

Solid product. Would recommend.

Pros:
1. Went together quite easily and requires little directions or general knowledge to install.
2. Good price to quality. No machining or coating defects.
3. Unlike competitors, the side mounted distro. allows for a much smaller overall form.
4. Besides the heatsink fins window and distro, anything that can be made of metal, is metal.

Cons:
1. Install manual does not mark a Mosfet for a thermal pad, but the heatsink has a machined position and leaves a gap when not applied.
2. No thermal pads for rear of 12VHPWR connector or rear of GPU core. Only applied on Mosfets and Vram.
3. When horizontally mounted, it does take up 1.20 gpu slots. Not 1 or 2. (Wish they would give a 1 and 2 slot tall end plate).

Overall:
The issues are small, and many companies are going to have a few particular complaints.
I would still recommend the product.

Good, but flawed

This block works well. But has in my opinion, 3 major issues. 1st is that the bios select switch was not accounted for and is inaccessible once the backplate is installed. 2nd is that the block is secured to the PCB through the backplate instead of the traditional 4 spring loaded screws, making removal of the backplate potentially require you to have to repaste the card. And 3rd, the included slot bracket is just sized weird, it's like 1 1/4 slot so I can't put the slot cover under the card in and its now just an open spot and looks bad. I don't know why the original couldn't be used. Would have looked better. Other than that, I like the terminal location and style. Gives more options for tubing runs

Questions people ask about this part

Answers specific to N-MS5090DTRIO-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?

It is machined for 4 boards:

MSI NVIDIA 5090 - MSI GEFORCE RTX 5090D 32GB GAMING TRIO OC
MSI NVIDIA 5090 - MSI GEFORCE RTX 5090 32GB GAMING TRIO OC
MSI NVIDIA 5090 - MSI GEFORCE RTX 5090 32GB SUPRIM OC
MSI NVIDIA 5090 - MSI GEFORCE RTX 5090 32GB VANGUARD SOC

Bykski cut these to a specific hardware layout, so match your exact model rather than the family before ordering. Part number N-MS5090DTRIO-X.

Is it in stock, and when will it ship?

Yes — only 10 left in Boise, Idaho. Orders placed before 2:00 PM MST on a business day ship the same day — we do not ship weekends or US holidays. Overnight delivery is available at checkout.

Can I return it if it turns out not to fit?

Yes. 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. So we would rather check the fit with you first: send us the model and we will check it against this part.

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. 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 $296.99 — 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