InWin NEPTUNE DN120 PRO User manual

User Manual

Neptune Series Product Video
Neptune DN120 PRO / DN140 PRO Installation Video
Product Video Information

Neptune's Ultimate Pro Grade Fan
The DN PRO fans are the flagship fan of the Neptune
series. These silent, high-static pressure fans achieve
this notoriety with their revolutionary blade design,
emphasizing aerodynamics and acoustic control. The
DN Pro fans feature a three-phase, six-pole motor,
contributing to the pro-grade cooling performance.
Pairing the Fluid Dynamic Bearings (FDB) and the copper
bearing shield provides a more balanced and stable fan.
Product Story

Neptune DN120 PRO Single Pack
Neptune DN140 PRO Single Pack
1. Neptune DN120 PRO Fan x 1
2. Fan Screws x 6
3. Radiator Screws 30 mm x 4
4. Radiator Screws 32 mm x 4
5. PWM Fan Extension Cable 500 mm x 1
1. Neptune DN140 PRO Fan x 1
2. Fan Screws x 6
3. Radiator Screws 30 mm x 4
4. Radiator Screws 32 mm x 4
5. PWM Fan Extension Cable 500 mm x 1
Package Contents

* InWin products comply with RoHS regulations.
* Speci󽗉cations may vary based on di󽗈erent regions.
Speci󽗉cations
Model Neptune DN120 PRO Neptune DN140 PRO
Quantity Included Single Pack
Model Number IW-FN-DN120PRO-1PK IW-FN-DN140PRO-1PK
Colors Black
Fan Size 120 x 120 x 25 mm 140 x 140 x 25 mm
Materials PBT, Silicon
Rated Voltage DC 12V
Rated Power 1.44W 1.92W
Rated Current 0.13A 0.16A
Speed Mode PWM 900 - 2200 +/- 10% RPM PWM 900 - 1800 +/- 10% RPM
Air Flow 24.15 - 60.56 CFM 43.74 - 91.66 CFM
Air Pressure 0.45 - 2.83 mm / H2O 0.67 - 2.95 mm / H2O
Connector (Fan to Fan) Non-Modular Cables
Connector to M/B 4-Pin (12V, PWM)
Noise Level 20.3 dB(A) (Normal) 24 dB(A) (Normal)
Bearing Type FDB
MTBF >60,000 hrs.
Net Weight 251 g / 0.55 lbs 297 g / 0.65 lbs
Gross Weight 441 g / 0.97 lbs 516 g / 1.14 lbs
Package Dimensions
(L x W x H)
212 x 37 x 157 mm
8.35 x 1.45 x 6.18"
232 x 37 x 177 mm
9.13 x 1.45 x 6.97"
Warranty 6 Years

PWM Fan Cable
PWM Fan Extension Cable
Cable Information
2
+12V
4
PW
M
1
GND
1
2
4
3
GND
+12V
FG
PWM
2
+12V
4
PW
M
1
GND
1
2
4
3
GND
+12V
FG
PWM
1
2
4
3
GND
+12V
FG
PWM
1
2
4
3

1.
Please make sure the power is o󽗈.
2.
Install the fans by mounting them in the
designated areas.
(1) Determine your air󽗊ow direction:
The following arrow indicates the direction
the air will be blowing.
Installation
OUT
IN
Fan Screws Radiator Screws 30 mm Radiator Screws 32 mm
1
3
2
4
(2) Determine your cooling setup and select the
right screws:

Installation
3.
How to daisy-chain fans to a motherboard:
4-Pin (12V, PWM)
4.
Use PWM fan extension cables for the following
reasons only:
a. The distance between fans are too far away.
b. The distance between the fan to the M/B is
too far away.
PWM Fan Extension Cable
a
b
* Please note that the package contains only one fan.

If your fan does not operate properly, please
follow the instructions below:
1. Please check your system's power.
2. Please make sure all the connectors are
connected properly.
3. For more technical support, please visit
InWin Forum at https://forum.in-win.com/
1.Please install the fans by following our
instructions.
2.When storing the fans, please keep this product
away from high temperatures. Keep it away from
machines such as heaters that might cause high
temperatures.
3.Please do not put anything in the impeller.
4.Please do not modify the wires or the connectors
provided by InWin.
5.Please do not touch the fan blades when the fan
is in operation.
6.Please only use your fan in a computer case.
7.Please keep this product away from any liquids.
Troubleshooting
Important Notes

Copyright © 2023 In Win Development Inc. All Rights Reserved.