ZKSJ 3.6L/min Mini DC Brushless Submersible Water Pump Ideal for CPU cooling

Works fine in water, but we had it out of water for 2 seconds and it broke. Be careful with it and it will probably be fine.

The first time I got the Product it was a defect and the second one they sent me it is a very good way to water cool your pc yes it is submersible and it can connect to a Molex or a 4 pin fan header just need to do the wiring a bit but over all it's great and the way I have it it worked fine

This is a very nice little pump. There are others available with similar specifications and performance. I purchased 3 of these from 3 different vendors. I test the flow rate and mechanical efficiency of each one. They were, as expected all about the same.This pump had one feature that made it the best.As shown in the photo I tested with a static head of 6 foot. measured the flow rate by filling a half gallon jug. All took about 70 seconds or 25 Gallons per hour. I measured the current and voltage as each was filling the jug, and the wattage was 3.84W (12.4 V x 310 mA) . Curious enough is the wattage decreased as the static head increased. With no static head the wattage was the same as the rated 4.2 Watts.The reason I like this one the best is the wire. It is the longest wire and it has a nice sealed, weather resistant, connector. The others came with short unterminated wires where I had to solder on the 2.5mm jack for the power supply.This is a nice pump that pack a punch, is mechanically and electrically efficient, and its actual performance matches those specified by this vendor. Both the static head 25 gph @ 6 foot, and wattage 3.84 were very good. And the weather proof connector was a nice touch whe compared to the other vendors.

I bought this pump for our pet water dish. I cut a piece of plastic foam to fit over the intake and did away with the awkward filter box in the dish. This pump shoots a stream about 18" high when it's unrestricted. I had to divert some of the flow to get what I needed for the water dish and put a riser pipe/hose on it. Worked perfect for about a week running 24/7 then got progressively noisy. Still working but almost too much noise. It's now been running about 3 weeks. These are rated at 30,000 hours which should be over 3 years running continuous. Like most imported things of this type....it doesn't last. Cheap to buy but what does that get you if it fails.

Mine leaks... not a problem if you're using it as a submersible pump. Pushes a really nice amount of water.

A great value. I'm using it for my home-brew sous vide cooker, so I especially appreciate the fact that it's rated for temperatures of up to 140°F (most pumps aren't). For its size, it rocks. Note it needs 12VDC to operate; I wired it up to an old wall wart and it works fine.Frankly I'm a bit skeptical of the rated 30,000-hour life, but we'll see. At this price, I can afford to replace it.

Works good, very compact, I took one star off because when I first powered it up it had a very high pitched squeal, like bearings not lubricated. When I put it underwater the squeal stopped. I have not been able to repeat the squeal, but it is worrisome. Time will tell if there is a problem

Disappointed by how noisy this thing is. I bought it for a mini aquarium project and designed all fittings and tubing around the inlet and outlet size of this thing just to get it set up and find out that it's way noisier than I expected. especially considering it's power output was minimal. I made sure I'd wired to the correct size power source thinking that maybe I was over or under pumping. no such luck. just louder and weaker than I was led to believe.