The Black Ice GT Xtreme 420 brings true next generation PC radiator technology to a higher level using the new GTX core platform for 3 x 140mm fans. The Black Ice GTX420 uses a unique pre-cool/aftercool coolant flow configuration that increases heat transfer efficiency and internal system flow rates. The Black Ice GTX420 is the first effective dual-core 3 x 140mm PC radiator providing new systems with an even higher performance envelope and headroom for future requirements.

• Two-pass pre-cool/aftercool front-rear dual-core flow configuration with a 30% increase in internal flow rates.
• Custom MaxFin™ 25 micron Copper Splitter Fin Configuration utilizing 45% thinner fin material yielding up to 50% less pressure drop.
• Unique fin configuration eliminates intra-louver accumulation of dust particles for trouble free operation.
• Radically optimized 20 FPI (Fins Per Inch) fin density providing dramatically increased heat transfer surface area.
• Custom low-profile 2-row 19.0 x 1.2mm MaxFlow™ tubes with twice the waterside surface area of the GTS and 60% frontal area reduction for superior low air-resistance aerodynamics and lower internal flow requirements.
• Yields up to 45% more heat exchange capacity than the Black Ice® *Xtreme in both Stealth or Performance modes.
• Achieves Black Ice® Xtreme level performance in stealth mode (low-noise/low-airflow conditions).
• First dual core computer radiator configured and optimized for 140mm fans.
• M4 Threaded Screw Holes for easier mounting and greater adaptability.
• Now standard G 1/4" female threaded fittings.
• Full high-temper brass structural construction for weight reduction and superior corrosion resistance.
• Uses 100% Non-corrosive water-solluble fluxing process.
• Fully RoHS compliant.
• Full electrostatic polyurethane painting finish for uniform coating with high temperature curing for increased finish durability.
• Renowned Black Ice® quality.
• Patent Pending Design.

Dimensions:	153 x 460 x 55.7 mm

12-10-2010
Reviewer: Josh (2)
Works well, nice design, only drawback is that it''s HUGE! You will need at least the whole length of a full case to fit this in it. Aside from that it''s awesome!

01-17-2010
Reviewer: Don (2)
I mounted this inside my Cosmos 1000 in a push+pull fan configuration. Man this rad can move some BTU''s. A great value when you measure total BTU''s per radiator and price. It is very well made and has a very nice finish. I Highly recommend it.