You could use a SATA power cable splitter such as these available at Amazon.

Thank you, is this one okay?

https://www.amazon.ca/StarTech-com-PYO4SATA-Power-Splitter-Adapter/dp/B0086OGN9E/ref=sr_1_5?crid=2UFMQJO5ROA70&keywords=sata+power+cable+splitter&qid=1688042499&sprefix=SATA+power+cable%2Caps%2C87&sr=8-5

I just opened the 5060 and noticed I get 4 groups of cable at the moment from the motherboard:

2 sata power cables

1 molex

1 optical drive power cable

I saw that the molex is used to attach to it a 2pin case fan.

If I use the one in the link I could manage to power the three 2.5 drives plus one for a sata->molex converted for the case fan.

Am I right? Do I have enough power?

And does the small power cable of dvd drive have enough power for a 2.5 hdd?

Hi @krisaore ,

Let me see if I have this right according to the wording in the first post.  You want to install three 2.5" drives in the DVD drive bay.  Max would be 2.  What are using in the hard drive cage - HDD or SATA SSD and is it your boot drive, and/or is M.2 being used for boot?

I'm not 100% sure if the 200w PSU can power 3-4 (mainly 4) HDD's.  SSD's are only 5v as compared to 12v for HDD's.  So if you wanted to power 3-4 SSD's, I doubt that would be a problem.

Another option is go external with storage drive(s) by using docking station(s), especially if using HDD's.  This could give you more storage capacity as compared to being limited to 3 SATA ports on the MB, and being possibly limited to onboard storage capacity.  This is unless you wanted to add a SATA port PCIe expansion card.

Use the black or blue SATA ports for boot and/or storage SSD, use white SATA port for storage, like storage HDD.  Dell has used different speeds for those ports.  6GB/s for black & blue and 3GB/s for white.

Yes, SATA power cable that goes to DVD drive can power HDD.

By any chance are you thinking of installing 2 drives in the HDD cage?  There's an adapter for that, but you already have 2 drives installed where slim DVD drive goes.

Yes. The sata power cable for dvd is slim sata.  Its slimness does not mean lower power rating than 2.5 hdd.   Dell oem slimline odd is 5V and 1.8A.  

I managed to use the optical drive sata+power with the caddy even if it is very plasticish

Hope it won't get on fire!

It won't catch on fire.  A good PSU, like Dell's, will trip if overloaded.

According to the specs you gave, you're not running a GPU card.  So I doubt the PSU will overload.

I have one nvme m2 adapted on the x16 pcie, and a old firewire on the x4 I don't use.