Bykski Full Coverage GPU Water Block and Backplate for EVGA RTX 3090/3080 FTW3 Ultra Gaming (N-EV3090FTW3-X)

Availability : In stock, In Boise ID USA Pre-Order Now Out of stock
$195.99 USD
Order in the next [totalHours] hours %M minutes to get it between and



The Bykski Full Coverage GPU Water Block and Backplate for EVGA RTX 3090/3080 FTW3 Ultra Gaming is a work of art! This full coverage block directly cools the video cards core (GPU), graphics memory (RAM) as well as the voltage regulator modules (VRM). By directly cooling these components you can achieve great temperatures! Along with these temperatures comes the ability to reach higher overclocks or extend the overall lifespan of your card by running at below factory temps.

The block is constructed of high purity copper that is electroplated to prevent oxidation. A high flow design is used to allow multiple blocks to run in series. Top and bottom ports can be used to configure parallel or serial designs in multi block set ups.

  • Finest Craftsmanship
  • Designed to Fit Standard G1/4 Thread Fittings
  • SLI/Crossfire Compliant
  • Model: N-EV3090FTW3-X
  • Brand: Bykski
  • Backplate Material: Black Anodized Aluminum (not in contact with coolant)
  • (Including but not limited to the following models)
  • Please check over the entire PCB picture after narrowing your selection to ensure compatibility. If you have any questions, please contact support for confirmation.
  • Compatibility based on these circuit board designs only
  • Fittings: G 1/4 Thread
  • Stock Backplates: Due to mounting variances between cards, stock backplates not guaranteed to fit.
Parts Included
  • 1x Full Coverage GPU Water Block
  • 1x Backplate
  • 2x Stop Fitting
  • 1x Mounting Hardware
  • Thermal grease
  • 1x 5v A-RGB (RBW) Light
  • (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.

This is a repair or replace only item. Returns not accepted on compatibility issues or block has had water/fluid run through it.

Manufacturer reserves right to alter block design to expand compatibility. Delivered item may not 100% match pictured item. Product does NOT come with English instructions.

Not responsible for any damage caused by or when using this product. Please use at your own risk.

Reviews | Q&A

Customer Reviews

Based on 9 reviews
Kedar Pittman
This thing is huge but cools fantastily

Installed this on my EVGA RTX 3080 FTW3 Ultra.

Kedar Pittman
This thing is huge but cools fantastily

Installed this on my EVGA RTX 3080 FTW3 Ultra.

Backplate screws

I was wondering does anyone else feel like the backplate screws are a bit short? And do you any of you have a good size gap in between actual card and the stand-off on the waterblock so you literally have to squeeze it together to get the screw to reach. The gap I am talking about is more in the backside of the gpu ( 2 standoffs to the right of the fan and rgb header

Thomas Nutter

Ok it cools good. I keep about 28c idel and 55 to 65c gaming. Got a couple complaints. 1. When screwed down the screws don't fit flush around the pci. If you try to screw all the way the card start to bow. 2nd. Started to tarnish a black color. I have all copper and Nickel. Should not be do this. I would warranty but I have done 100s of Builds and took it apart. It came clean some but some areas look burnt. But all in all a good looking waterblock. Now byski was the only one available when I got my 3090 and sorry byski but I would of went with EK. I have used EK fir years and all other parts for my triple rad. Set up is all EK besides the waterblock. But again it doesn't look bad.
One more thing would of been nice is to have a black out Plat to the right of the block to hide the circuit board of the gpu. Just my opinion.

michael ryan hughes
its a decent waterblock

my issue is how cheap the rgb strips are on these bykski blocks, if you touch them wrong they fall off. luckily they sell replacements for those of us who can't solder then back together... the gap everyone is talking about is real and you can fill it with some low end cheap thermal pads if you would like, that is basically what i did. i had an issue with the screws as well where i had to go buy some extra screws to fit the backplate on because the ones provided did not work. other than that the temps were great for the heat output of my card.

Return/Exchange/Shipping Policy

Return Policy for New Products:

For international customers please reference this page for duties/tax information.

Products returned for credit must be received within 20 days of invoice date and a 15% restocking fee will apply. If 20 days have gone by since your purchase, unfortunately we can’t offer you a refund or exchange.

All returned items must be in like new condition with all related parts including screws, manuals, etc. If you have lost, thrown away, scratched or opened sealed boxes or bags – a higher restock fee may apply upwards of 50%.

If a customer is misleading about the defect and evidence of incorrect install/use or tampering has occurred, a higher restock fee may be assessed or the return may be completely denied. A qualified technician will test each returned product for defects. will not assess a restocking fee for defective products.

Sale items  or Pre-owned (if applicable)
Only regular priced new items may be refunded or returned, unfortunately sale items and Used/Pre-owned/Open box items cannot be refunded.

Returns will not be accepted without an RMA number provided from 

Return Shipping
Customers are responsible for ALL return shipping charges on merchandise for any reason. Unless otherwise noted, shipping on products and returns is non-refundable, and returning a product comes at the expense of the customer. Customer will be responsible for paying shipping products/orders back to Shipping costs are non-refundable. 

Depending on where you live, the time it may take for your exchanged product to reach you, may vary.

Please ship using a carrier that provides a tracking number, insurance and proof of delivery. is not responsible for return items lost by the carrier. Valid proof of delivery must include the receipt signature of an authorized employee.

Erroneous Shipments
In the event an incorrect item is shipped in your order, the correct item / replacement will be shipped using the same method as the original order.

Damaged Items:  All packages are fully insured at no additional charge.

If you receive a damaged package, you must notify us within 48 hours of receipt. Sending back damaged merchandise voids the shipping insurance and no credit will be given. Damaged packages must be held for five days with original packaging for carrier inspection.

Shipment Refusal

If a shipped order is refused or returned undelivered there will be a mandatory 20% restocking fee, a $20.00 Return Service Fee and no refund on the shipping cost. Please be aware that refusal is significantly more expensive then using your own carrier and is NOT recommended.Please note: Refusal of packages due to duties and taxes will still result in brokerage fees and return shipping costs to us being deducted from your refund. These fees are usually higher than what paying the initial fees would have been.


Shipping Policy

Selecting overnight shipping method will not ensure that your order ships same day and is not guaranteed.



Any and all orders over $100.00USD that are cancelled will have a 10% restock fee assessed, unless an in-store credit is issued for future purchases, then the restock fee is waived. Please double check your orders before checkout! Combining of orders/changes of orders is not permitted and cancelling and re-order will place your order to the back of the queue. We offer heavily discounted shipping rates to offset any additional items you may need. We will not refund shipping costs for any reason.