EK-Vardar EVO 140ER Fan

EK-Vardar EVO is industrial grade high-static pressure computer cooling fan, designed and built primarily for highest-performance computer liquid cooling systems. Developed in-house and first introduced in 2014, renowned EK-Vardar fans have now evolved into new EK-Vardar EVO lineup. EK-Vardar EVO fans with Extended range (ER) of PWM operation feature a special Start-Stop function which brings a true 0db experience for the absolute silent fan operation. EK-Vardar EVO is simply the best choice for computer radiator cooling as it provides unmatched performance throughout the entire operating range.

The Vardar family of cooling fans carries the name of a type of the cold northwesterly wind blowing from the mountains down to the valleys of Macedonia. It is a type of ravine wind, enhanced by a channeling effect while blowing down through the Moravia-Vardar gap, bringing cold conditions from the north to the Thessaloniki area of Greece. Most frequent during winter, it is blowing in the rear of a depression when atmospheric pressure over eastern Europe is higher than over the Aegean Sea.

The key characteristics of EK-Vardar fans are:

High-static pressure / low noise profile

Unlike other general-purpose computer cooling fans, the EK-Vardar family of fans is built specifically for computer liquid cooling systems, namely radiator cooling. The 7 fan blade design is optimized for high-pressure operation while maintaining the low noise profile throughout the whole operation range of the fan. Vardar's design and construction are also very suitable for high-performance air coolers or as case fans for restrictive cases with dust filters.

High-quality motor and bearing assembly

New electrical design, actively cooled motor windings and Hydro-Dynamic bearing with 50.000 hours life span (MTBF) ensures uninterrupted operation for years to come. Precise Pulse Width Modulation (PWM) for fan speed adjustment allows performance on demand. EK-Vardar EVO ER models feature hydro-dynamic bearing which is superior to double-ball bearing due to less friction, wear and vibration and consequently less noise.

0db Regime

EK-Vardar EVO features a unique Start-Stop function which ensures the user a true 0db noise environment. When fan curve is set with the minimum threshold point below 25-30% PWM duty cycle (depending on motherboard model), the motor and the electronics will turn off and the fan will simply stop spinning. EK-Vardar EVO restarts operation automatically as fan control ramps up its operational duty cycle past threshold start-stop point. This feature is very useful for preventing radiator dust buildup in idling PCs and to prolong the lifecycle of the fan itself.

Timeless design

The EK-Vardar EVO fan fits subtly into any liquid cooling computer without drawing too much attention. Delivered in all black color scheme it blends perfectly with a sleek and minimalist looking EK-CoolStream liquid cooling radiator.

Mechanical and electrical specifications:

- Maximum speed: 2000 RPM (+/- 10%)

- Rated Voltage: 12V DC

- Power Draw: 3.86W

- PWM Duty Cycle: 25-100% - ER (Extended Range)

- Connector: 4-pin PWM header

- Shaft bearing: Dual-ball bearing

- Bearing durability: 50.000 hrs @ 40°C (MTBF)

- Dimensions: 140 x 140 x 25 mm

Performance characteristics:

- Max Air Flow: 108 CFM = 184 m³/h

- Static Pressure: 3.15mm H²O = 30.9 Pa

- Sleeved cable length: 400 mm

- Noise Level: 40.7 dBA (100% PWM)

Scope of delivery:

- EK-Vardar EVO series fan

- self-tapping screws (4 pcs)