Granzon
Granzon GBN-RTX4090FE Full-Armor GPU Water Block with Backplate for Nvidia RTX 4090 Founders Edition, Nickel Copper + Aluminum Armor, G1/4
Granzon GBN-RTX4090FE Full-Armor GPU Water Block with Backplate for Nvidia RTX 4090 Founders Edition, Nickel Copper + Aluminum Armor, G1/4
TL;DR: The GBN-RTX4090FE is a full-armor water block built only for the Nvidia RTX 4090 Founders Edition PCB and matches the FE board's distinctive shape rather than any AIB layout. The cold plate is nickel-electroplated high-purity copper with a 0.3mm jet microchannel sized to the AD102 die, and contact...
Common Applications
The GBN-RTX4090FE is a full-armor water block built only for the Nvidia RTX 4090 Founders Edition PCB and matches the FE board's distinctive shape rather than any AIB layout. The cold plate is nickel-electroplated high-purity copper with a 0.3mm jet microchannel sized to the AD102 die, and contact zones on either side of the core press onto each GDDR6X module and the VRM stages with the supplied thermal pads. Front and back anodized aluminum armor wrap the block without contacting the coolant, giving the long FE PCB additional rigidity once the stock cooler is removed. Overall block dimensions are approximately 227.2 x 125.7 x 27.1 mm, ports are G1/4 threaded, and top plus bottom port options support parallel or serial multi-block plumbing in dual-loop builds.
Frequently Asked Questions
Q: Which RTX 4090 cards does the GBN-RTX4090FE fit?
A: Nvidia RTX 4090 Founders Edition only. The PCB on the FE card is unique; AIB cards such as ROG Strix, TUF, Aorus, Suprim, and Gaming Trio require their own dedicated blocks.
Q: Does this block include RGB lighting?
A: No. The GBN-RTX4090FE ships without integrated LED lighting. The finish is black anodized aluminum armor on top and back.
Q: What are the block dimensions?
A: Approximately 227.2 mm long, 125.7 mm wide, and 27.1 mm thick at the armor face.
Q: What is included in the box?
A: Full coverage block, front and back aluminum armor plates, two stop fittings, mounting screw kit, and thermal grease plus pads. English printed instructions are not included with the block.
Q: What thread do the ports use?
A: Standard G1/4 thread. Two unused ports can be sealed with the included stop fittings.
