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Black 240mm reversed-blade case fan with dual 120mm ARGB rotors in a single frame, 28mm thick, infinity mirror lighting on four sides

JONSBO

JONSBO ZB-240BR 240mm Reversed Blade Case Fan

SKU CH-Q8GS-9HQDM MPN ZB-240BR

A 240 mm reversed-blade radiator fan with dual 120 mm ARGB rotors in a single 28 mm frame, delivering 20.95–65.26 CFM at 700–2400 RPM and 20.3–36.6 dB(A) via 4-pin PWM control

  • Fan size240 mm
  • Fan depth28 mm
  • Rotational speed700-2,400 rpm(±10%)
  • Airflow rate20.95-65.26 CFM
  • Air pressure rating0.45-3.2 mmH2O
  • Operating noise20.3-36.6 dB(A)

Model ZB-240BR

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  • Reversed blade design directs airflow efficiently through the radiator
  • 700-2400 RPM range balances silent operation with high static pressure
  • Four-sided infinity mirror with 52+18 ARGB LEDs creates immersive lighting
  • All-in-one frame unifies two 120 mm fans for single-cable PWM and 3-pin ARGB control
  • 28 mm thick single-frame unit simplifies installation in compatible cases

Reversed-blade 240 mm fan unit

The JONSBO ZB-240BR is a single-frame assembly that holds two 120 mm reversed-blade ARGB fans. A 4-pin PWM header and a 3-pin 5 V ARGB header feed both fans simultaneously, so speed and lighting stay synchronised without extra cables.

Builders who want unified lighting and easy wiring

The all-in-one frame removes the need to align separate fans or route individual power leads. Systems with limited clearance for 28 mm thick radiators or cases that require standard blade orientation for front intake should consider other options.

2400 rpm top speed and 3.20 mmH₂O peak pressure

At maximum speed the unit delivers 65.26 CFM airflow with 36.6 dB(A) noise, while the 700 rpm floor keeps it near 20.3 dB(A) for quiet idle operation. The 52 perimeter LEDs plus 18 axis LEDs require a controller rated for at least 70 LEDs per channel.

How it compares

Measured against everything we stock in PC Cooling Fans, at today’s prices. Recalculated every night.

Price $23.99
Pricier than about 60% of the 8,339 comparable items (median $19.99).
Fan size 240 mm
Higher than about 94% of the 1,114 comparable items (median 120 mm).

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Specifications

Product
Brand nameJONSBO
Product lineZB SERIES
Model nameZB-240BR
Product typeCase Fan
Product colorBlack
Performance
Rotational speed700-2,400 rpm(±10%)
Airflow rate20.95-65.26 CFM
Air pressure rating0.45-3.2 mmH2O
Size & build
Fan size240 mm
Fan depth28 mm
Product dimensions242 mm（L）*123 mm（W）*28 mm（H）
Compatibility
Compatible withCase
Environment & compliance
Operating noise20.3-36.6 dB(A)
More details
LED lightingARGB

Other versions of this model

5 more in the same range

Questions about this item

Will the 240mm frame with 28mm thickness and 4-pin PWM fit my existing case fan mounts?

The unit measures 242mm by 123mm by 28mm and uses standard 4-pin PWM, so it fits typical 240mm radiator or case mounts that accept 28mm-thick fans.

How do I confirm the 700-2400rpm range and ARGB lighting are working after install?

In BIOS or fan software you should see speed readouts between 700 and 2400rpm; the 52 circumference LEDs plus 18 axis LEDs will light through the four-sided infinity mirror when the 3-pin 5V ARGB header is connected.

Does the single-frame unit include both 120mm fans and the ARGB cables, or must I buy anything extra?

The box contains the all-in-one frame with two 120mm reversed-blade fans pre-mounted, a 4-pin PWM lead and a 5V ARGB male/female daisy-chain cable; no separate fans or cables are required.

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