NZXT F280 RGB Core vs F140 RGB Core: Which Fan Size Fits?

Quick answer

Choose the F280 RGB Core if you have a case or radiator that takes a 280mm fan mount and you want two fans installed as one piece with a single cable. Choose the F140 RGB Core if you need a standard 140mm fan for a single rear or top mount, or if you want to buy and replace fans one at a time.

What actually differs between the two fans

The main difference is how the fans are packaged and mounted, not the lighting. The F280 RGB Core is a single-frame unit with integrated fans, so a 280mm mount gets two fans in one housing that connects to an NZXT controller with one cable. The F140 RGB Core is a standard 140mm fan with eight individually addressable RGB LEDs on the hub, and each fan is its own unit.

• F280 RGB Core: one frame, two integrated fans, one cable to an NZXT controller (sold separately).
• F140 RGB Core: one 140mm fan per unit, eight individually addressable LEDs, high static pressure for radiators.
• Both share the F Series RGB Core lighting look, so mixing sizes in one build stays visually consistent.

Mounting: single-frame versus individual fans

A single-frame unit is faster to install because you are not lining up and cabling two separate fans. That matters most on a front or top 280mm mount where two 140mm fans would normally sit side by side. The trade-off is flexibility: if one fan in the frame ever needs attention, you are working with the whole unit rather than swapping a single fan.

The F140 RGB Core is the opposite. It fits any single 140mm position, so it works for a rear exhaust, a lone top mount, or a 140mm radiator spot. If you want to add one fan at a time or match an existing 140mm fan, this is the simpler path.

Cooling and radiator use

Both fans are built for static pressure, which is what pushes air through a radiator rather than just moving it through open space. The F140 RGB Core is described as having a refined hub and blade design for enhanced static pressure through a radiator. The F280 RGB Core carries the same F Series RGB Core design language in a two-fan frame, so it suits a 280mm radiator or a large case intake where you want two fans in one mount.

If your radiator or case mount is sized for 280mm, the F280 RGB Core is the direct fit. If your mount is a single 140mm, the F140 RGB Core is the direct fit.

Lighting control and cabling

Both fans use the same eight-LED-per-fan RGB Core lighting approach, so the visual result is consistent across sizes. The practical difference is cabling: the F280 RGB Core needs a single cable to an NZXT controller for lighting and speed control, while the F140 RGB Core is cabled per fan. If you are already running an NZXT controller, the single-frame F280 keeps the cable run tidy. If you are not using a controller, plan for how each fan will be powered and lit before you buy.

Price and buying pattern

The F140 RGB Core is the lower-cost way to add one 140mm fan, and the F280 RGB Core is priced higher because it is a two-fan single-frame unit. If you need two 140mm fans for a 280mm mount, compare the single-frame F280 against buying two F140 RGB Core fans. The single-frame route usually means less cabling; the individual route usually means more flexibility if you only need one fan or want to spread the purchase over time.

Trade-offs at a glance

• Installation speed: The F280 RGB Core installs as one frame with one cable, while two F140 RGB Core fans require separate mounting and cabling. Pick the F280 if you want the fastest 280mm install.
• Mounting flexibility: The F140 RGB Core fits any single 140mm position; the F280 RGB Core needs a 280mm mount. Pick the F140 if your case only has single 140mm spots.
• Replacement and expansion: Individual F140 RGB Core fans can be added or replaced one at a time, while the F280 RGB Core is a single integrated unit. Pick the F140 if you want to build up your fan setup gradually.

Product facts

• F280 RGB Core: Single-frame unit with integrated fans; connect a single cable to an NZXT controller (sold separately) for lighting and speed control. Best when you want two fans in a 280mm mount with minimal cabling.
• F140 RGB Core: Eight individually addressable RGB LEDs mounted on the fan hub; refined hub and blade design for enhanced static pressure through a radiator. Best when you need one standard 140mm fan for a rear, top, or radiator position.

Which one should you get?

Best for

• Builders with a 280mm front or top mount who want two fans in one frame
• Anyone using an NZXT controller who wants a single cable run for a 280mm position
• Large cases where a 280mm intake or radiator mount is the main cooling spot

Not for

• Cases with only single 140mm fan mounts
• Builders who want to buy and replace fans individually
• Anyone who needs a 120mm fan size instead