Question about SATA power connectors


(karon) #1

Hi everyone, i see many R2 pictures with twa onboard SATA power connectors : one with 2 pin and one with 4 pin… but as you can see on the picture my R2 got 2 connectors with 2 pin!

Capture

is it normal ? how can i do for an 3.5" HDD ? i have to replace the connector ?

thank you for your replies.


#2

Hi Karon,

Arm boards, not only this one but mainly all of them, are not designed for native use with 3.5 HDD’s. They fit only for 2.5 laptop HDD’s. There is a reason for it : 3.5 HDD’s need double power feeding : 12V and 5V. So, your snap describes well a 2.5 HDD power connector on the board. It fits for cables made for this purpose : https://www.aliexpress.com/item/Original-Banana-Pi-SATA-Cable-HDD-Connectors-Banana-Pi-Hard-disk-cable-Connect-2-5-inch/32821887139.html?spm=2114.search0104.3.99.425263b7RLxM4W&ws_ab_test=searchweb0_0,searchweb201602_4_10152_10065_10151_10344_10068_5722815_10342_10343_10340_10341_5722915_10698_10697_5722615_10696_10084_10083_10618_10305_10304_10307_10306_10302_5722715_5711215_10059_5723015_10184_10534_308_100031_10103_441_10624_10623_10622_5711315_5722515_10621_10620,searchweb201603_28,ppcSwitch_3&algo_expid=4ba737bc-e083-4f55-aa1d-b09c106fb6a8-15&algo_pvid=4ba737bc-e083-4f55-aa1d-b09c106fb6a8&priceBeautifyAB=0 . Therefore, a 3.5 HDD can be plugged with an USB kit like this one: https://www.aliexpress.com/item/ORICO-3-5-Inch-Transparen-HDD-Enclosure-Case-USB-3-0-5Gbps-SATA3-0-Support-UASP/32804561361.html?spm=2114.search0104.3.17.d7b54de2xBnfzl&ws_ab_test=searchweb0_0,searchweb201602_4_10152_10065_10151_10344_10068_5722815_10342_10343_10340_10341_5722915_10698_10697_5722615_10696_10084_10083_10618_10305_10304_10307_10306_10302_5722715_5711215_10059_5723015_10184_10534_308_100031_10103_441_10624_10623_10622_5711315_5722515_10621_10620-5711315,searchweb201603_28,ppcSwitch_3&algo_expid=9c801748-201d-4722-a05e-cbe95bfc8399-2&algo_pvid=9c801748-201d-4722-a05e-cbe95bfc8399&priceBeautifyAB=0 . If you have a sufficient knowledge in electronics and are able to built things in some homemade case with internal SMPS , then you can built it around some power splitter cables like this : https://www.aliexpress.com/item/SATA-Power-Cable-Splitter-Molex-4pin-to-Serial-ATA-15pin-x-2-Male-Female-Y-Hard/1000003357079.html?spm=2114.search0104.3.2.10d56009VhCaot&ws_ab_test=searchweb0_0,searchweb201602_4_5722916_10152_10065_10151_10344_10068_5722816_10342_10343_10340_10341_10698_10697_10696_5722616_10084_10083_10618_10305_10304_10307_10306_10302_5722716_5711216_5723016_10059_10184_10534_308_100031_10103_441_10624_5722516_10623_10622_10621_10620_5711316,searchweb201603_28,ppcSwitch_3&algo_expid=4680e681-3186-4596-8603-a0796f2cef24-0&algo_pvid=4680e681-3186-4596-8603-a0796f2cef24&priceBeautifyAB=0. In such a case, you should manage the power-off procedure for your HDD through a supplementary button, co’s the board will not automatically shut your disk down when powering off !

Regards, Paul.


#3

That’s right. The power connectors on the BPI R2 are only for 2.5" HDDs. My solution for this is an old PC power supply with bridged power-on pin


(sunarowicz) #4

Here you can find some other idea on how to power 3.5" HDD with R2: BPI-R2 boot / power suppy.


(Rahmi özdemir) #5

There is 12 volt 2 pin on the picture.12 volt pin is empty.Can I to replace the connector?Do I use 3.5" sata HDD? I have 12 V 2 A power adapter for BPI-R2.