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Rectangular black aluminium water block with acrylic top and nickel-plated copper base, 11.51 by 4.94 by 1 inches

Phanteks

Phanteks Glacier G4090 GIGABYTE Water Block Bundle PH-GB4090GB_BK01_BP diy cooling

SKU CH-W4AG-AFKR1 MPN PH-GB4090GB_BK01_BP

Full-cover water block cools the entire PCB of GIGABYTE RTX 4090 cards with a 10 mm copper base and addressable RGB lighting

  • Block Dim.11.51 x 4.94 x 1 in (292.31 x 125.47 x 26 mm)
  • Block MaterialAluminum
  • Full-coverage PCB cooling for GIGABYTE AORUS MASTER / GAMING RTX 4090
  • 10mm copper base maximises heat transfer from GPU and memory
  • Nickel-plated finish resists corrosion for long-term loop reliability
  • Viton rubber washers maintain seal force to prevent leaks
  • Digital-RGB sync with Phanteks D-RGB and motherboard ARGB lighting

Targeted GPU Water Block

The Phanteks Glacier G4090 GIGABYTE Water Block Bundle is a full-coverage block built for GIGABYTE AORUS MASTER and GAMING RTX 4090 graphics cards. It uses a 10mm copper base and expanded fin area to transfer heat directly from the entire PCB. Digital-RGB lighting synchronises with Phanteks D-RGB products and compatible motherboard addressable RGB systems. Builders adding custom liquid cooling to these specific cards are the intended users.

Installation Requirements

Mounting replaces the stock cooler so the card must be removed from the system and disassembled carefully. Thermal pads and paste must be applied to every contact point on the PCB before the aluminium cover plate is secured. Viton rubber washers are included to retain seal force and help prevent leaks once the loop is filled. First-time installers should plan extra time for pad placement and leak testing.

Loop Compatibility Limits

The block adds 26 mm of height to the card profile so clearance inside the case must accommodate the thicker assembly. Flow restriction is reduced by the larger fin surface but the loop still needs a pump capable of moving fluid through a full-cover GPU block alongside other components. Digital-RGB control requires a 5 V addressable header or a Phanteks D-RGB controller; standard 12 V RGB headers will not work. Buyers without addressable RGB hardware cannot use the lighting feature.

Highlights

  • Full-coverage PCB cooling for GIGABYTE AORUS MASTER / GAMING RTX 4090
  • 10mm copper base maximises heat transfer from GPU and memory
  • Nickel-plated finish resists corrosion for long-term loop reliability
  • Viton rubber washers maintain seal force to prevent leaks
  • Digital-RGB sync with Phanteks D-RGB and motherboard ARGB lighting

Specifications

BrandPhanteks
ModelGlacier G4090 GIGABYTE Water Block Bundle
Part NumberPH-GB4090GB_BK01_BP
Block Dim.11.51 x 4.94 x 1 in (292.31 x 125.47 x 26 mm)
Block MaterialAluminum
Shipping weight2.02 kg
Package size356 × 191 × 70 mm

Questions about this item

How do I verify the Digital-RGB lighting is synchronised after installing the Glacier G4090 block?

Connect the block's D-RGB header to a Phanteks D-RGB controller or a motherboard 5 V addressable RGB header, then use the Phanteks software or the motherboard's RGB utility to confirm the lighting responds and matches other devices.

What comes in the box and what must I purchase separately for the PH-GB4090GB_BK01_BP bundle?

The bundle includes the nickel-plated copper cold plate, acrylic top, black aluminum cover plate and Viton rubber washers; you must supply a compatible GIGABYTE AORUS MASTER or GAMING RTX 4090 card, fittings, tubing, pump, radiator and coolant.

Which version of the Glacier G4090 water block fits my GIGABYTE RTX 4090 model?

The PH-GB4090GB_BK01_BP is designed specifically for GIGABYTE AORUS MASTER and GAMING RTX 4090 cards; verify your card's exact model name matches one of those two before purchasing.

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