Its good.

Its my mistake that i didn't select the 5mm cable, though 3mm is fine enough, plus didn't read that its 3 pin and most boards (actually) dont support that. So a small DIY job and it will be ok.

... and now this. Be careful when getting this as this led is like 1/2 what the normal led is in Cooler Master casings. It didn't fit in the slots at all. You need to do weird hack and slash to make it fit here. and its not as bright as the blue led. I connected it to HDD slot and the power light (Blue led) is way brighter than this white led.

Now if you know that his one will fit your slot then do buy it. Otherwise avoid at all costs. Specially Cooler Master owners. My 175Rs. went to dogs.