Modtek Silence D5 Pump (Pump Only)

I took a chance on this particular D5, because it was considerably cheaper by about 40-60% It has a 2-pin header and a Molex pass through, so make sure you have a Molex to Sata-MALE (very important!) adapter. Being a 2-pin this is a DC not PWM pump. In my opinion, having the coolant flow run at a consistent speed is better than a PWM controlled pump that slows down/speeds up depending on requirements of whatever you are doing. Coolant is coolant, and with a reservoir to provide thermal mass, the temperature fluctuation curve is not going to change as quickly as the speed of a PWM pump, so constant flow rate is my preference. It comes in a plain box, no instructions or any stickers on the motor itself, its black polymer body, and thats it. Its quiet and has very little vibration. I will be recommending this to colleagues.

Interestingly my unit is loud in a high pitched pump-noise way at >70%, and also loud in a rattley way <45%. Which works fine for me since I keep it at 50-60% - moves coolant fast at that speed and has a dull barely audible hum. Compared to other brand D5 pumps that cost twice as much if not more, this is totally acceptable performance for the money. Happy customer!

Seems to be running very good for the past month its pretty quiet. Not silent but not crazy loud. I'm satisfied with it for half the price of most pumps.

Works on singularity reservoir does vibrate at higher speeds but with it set at 60% stays quite and still works great

Just like all the other d5 pumps but affordable