Scythe SM1425SL12HPVC-V 140mm Slip Stream 140 PWM Adjustable VR

Pros: i have it on my NZXT vulcan case it works great put my sons rig in there his old hd3870 over clocked to 871 1311 never could get that in old case, i have the slip stream one with 3pin

Cons: little loud, but case has fan control

Overall Review: might get 2more for my own build

Pros: Comes with molex power adapter cable. Cables are nice and long.

Cons: Not standard 140 mm fan. Has only 120 mm screw holes. But but the frame extends beyond the mounting holes and it is too big to fit in the 120-only fan mounts in my cases. The size of the unit means it will only fit in places designed for 140mm fans, so why not use 140mm screw locations? Has another cable (NOT detachable) to an expansion slot cover with a knob for manual control. You can still set it for common pwm control, but you can't avoid having to mount that bracket. The pictures are misleading -- THEY SHOULD SHOW THE 2 CABLES AND THE BRACKET.

Overall Review: Silly me. I searched for 140mm 4-wire fans, found only a few, and ordered this without looking closely enough. I wanted to use it as a front intake fan, but that requires mounting on the outside of the front frame of my case, and the expansion-slot cover will not fit thru the slots. Even if I solved that somehow, the vile 120-mount/140-dimension thing make it impossible to put in the the lower front slot and would block the lower slot if I put it in the upper. I want two front input fans and this unit simply cannot be part of that. Not usable with my case for what I wanted to do. Would it work if I cut the cable to the expansion-slot bracket????? (Not worth my testing because of the size issue).

Pros: It’s very quiet when mounted VERTICAL. Includes rear mount "fan controller with PWM to VR switch" but see cons...

Cons: I wish the description and/or pictures made this clear…The fan is hardwired to the controller so if you only want to use PWM mode and don’t want to add the clutter of a fan controller it will require modification. Sleeve bearing…it produces vibration and can be noisy when mounted horizontally. However, at the lowest speed it’s not bad.

Overall Review: Had I know the fan could not be easily disconnected from the controller I would have paid a few dollars more for a better PWM fan. Be aware…140mm fan but it only has 120mm mounting holes.

Pros: 140mm (120mm mounting holes) with PWM, good for CPU coolers, fits a NH-D14 perfectly Moves a nice amount of air Long cables, switch for DC/PWM and a control knob on a slot cover are nice for a case fan

Cons: Long cables, switch for DC/PWM and a control knob on a slot cover suck for a CPU fan and they're not shown on the pictures. I put two on my NH-D14 because I wanted PWM control, not DC, and now I have about 4ft of cables to take care of. I didn't want to cut the cables off or shorten them because I may want to use them later, because... (see next point) Sleeve bearings. I'll replace them as soon as I can find an efficient 140mm PWM fan with FDBs. Noctua allegedly has PWM fans in the works.

Pros: Good Air flow quiet at low speed. You can use the switch and knob to tune the fan if your PWM controls are not easy to use or if you want it to run slower then your controller will let you.

Cons: I wanted a 140 mm fan and this is not one.

Overall Review: This is a response to my previous review and the noise I was hearing has disappeared now that the fan is mounted better.