How many times can i split a Sata power cable?

Tyler Sowden

Reputable
Oct 28, 2014
18
0
4,510
HEY! I'm working on a new build and ordering all the parts this black Friday. Parts include
Case: 3 piece corsair half stacker (HUGE CASE)
PSU: 1000w Cooler Master V series
Mobo: MSI x99 Xpower
CPU: i7-5820k Haswell-E Cooled w/ Custom loop
GPU: MSI 770 Lightning for now (Will be getting 970 in the future)
Drives:
-HDD's : 4x1TB WD Red drives RAID 10 (All saves, Important files and my music collection)
-SSD's : 2x 240GB Intel 730 in RAID 0 (HIGH intensive Apps/Games
1x 480GB Intel 730 (Boot Drive and other Apps/Games)
1x HP DVD Read/Write
RAM: 16GB Corsair Vengeance DDR4


My Problem is, I do not know much about power, and as you can see i am going pretty OVERBOARD on my storage. The drives are going to be in the top of me HAF STACKER. this makes cableing a problem because the HAF STACKER's top is about 24" away from where my PSU is mounted. I am planing on running ONE sata extension up to all 7 drives and then splitting it once up there (see picture for details). Will this configuration cause any sortage of power of overload anything? Will It work fine? if not, how would i go about providing all 7 drives (4 HDD and 3 SSD) with sufficient power? Thank You!

Diagram/Picture of my solution. Will it work?:
7nYWx19.jpg

 
Solution
The SATA power connector is not as robust as the old Molex. It carries 12v, 5V, and 3V power circuits. But each pin has a rating of only 1.5 amp. You would have to find the total loads of the devices to know for sure. But I wouldn't connect more than 1 drive to one SATA power connector. I believe the +12V and 5V current of the average HDD is around 1 amp. Maybe someone else can verify that.

clutchc

Titan
Ambassador
The SATA power connector is not as robust as the old Molex. It carries 12v, 5V, and 3V power circuits. But each pin has a rating of only 1.5 amp. You would have to find the total loads of the devices to know for sure. But I wouldn't connect more than 1 drive to one SATA power connector. I believe the +12V and 5V current of the average HDD is around 1 amp. Maybe someone else can verify that.
 
Solution