Granzon
Granzon GBN-AS4090STRIX Full-Armor GPU Water Block with Backplate for Asus ROG Strix RTX 4090 and Asus TUF Gaming RTX 4090, Nickel Copper + Aluminum
Granzon GBN-AS4090STRIX Full-Armor GPU Water Block with Backplate for Asus ROG Strix RTX 4090 and Asus TUF Gaming RTX 4090, Nickel Copper + Aluminum
TL;DR: The GBN-AS4090STRIX is a full-armor water block dedicated to the Asus ROG Strix RTX 4090 and Asus TUF Gaming RTX 4090, which share a common PCB layout. The cold plate is nickel-electroplated high-purity copper with a 0.3mm jet microchannel sized to the AD102 die, and the channel fin area is roughly...
Common Applications
The GBN-AS4090STRIX is a full-armor water block dedicated to the Asus ROG Strix RTX 4090 and Asus TUF Gaming RTX 4090, which share a common PCB layout. The cold plate is nickel-electroplated high-purity copper with a 0.3mm jet microchannel sized to the AD102 die, and the channel fin area is roughly three times the surface of the core itself to maximize wetted contact. Front and back anodized aluminum armor wrap the block without touching the coolant, and a 12mm thick aluminum support bracket adds rigidity to the long Strix PCB to limit sag under the block's own weight. Inlet and outlet are G1/4 threaded, and top plus bottom port options let multiple cards be plumbed in parallel or in series. The block cools the GPU core, GDDR6X memory, and VRM stages directly via the copper plate and the supplied thermal pads.
Frequently Asked Questions
Q: Which Asus RTX 4090 cards does this block fit?
A: Asus ROG Strix RTX 4090 and Asus TUF Gaming RTX 4090. Both AIB cards share the same PCB layout. It is not compatible with reference, Aorus, Suprim, or Gaming Trio PCBs.
Q: Does the GBN-AS4090STRIX include RGB lighting?
A: No. There is no integrated RGB strip on this SKU. The armor and backplate finish is black.
Q: What are the wetted materials?
A: Nickel-electroplated high-purity copper for the cold plate, with POM and acrylic for the channel cavity. The aluminum armor pieces never touch the coolant.
Q: What is included in the box?
A: One full-cover block, front armor plate, aluminum backplate, two stop fittings, mounting screw kit, thermal pads, and thermal grease.
Q: What thread do the ports use?
A: G1/4. Top and bottom port positions allow parallel or serial multi-block plumbing.
