Dish Wally Receiver DVR Hard Drive
Howdy, I am outfitting our rig w/ a Dish Wally receiver and want to attach an external hard drive (EHD) for a DVR. There is a lot of conflicting info on the web as to whether an EHD attached to a Wal...
Forum Discussion
YC 1 wrote:
Great question, sorry I can't answer it. Are you thinking of a solid state external drive?? That should really reduce any power requirements and increase the speeds.
SSD drives actually can draw MORE current than spinning drives.
Sort of depends on what you are comparing to, if comparing 2.5" SSD to a 3.5" spinner than yeah the SSD most likely will draw less.
However if comparing 2.5" SSD to 2.5" spinning drive then no, spinning drives can draw less than a SSD of similar drive space.
Example 1 1TB Samsung EVO SSD can draw as much as 4W which translates to .8A at 5V
SAMSUNG 1TB Specifications
I have seen 1TB SSDs with 1.1A-1.2A at 5V current rating.
A 1TB 2.5" spinning drive however has typical read/write wattage of 1.6W-1.7W or about .34A at 5V.. Granted, there is "spinup" current draw on spinners but that is typically much less than the 1A that is listed in the specs and that lasts a few milliseconds. Most 2.5" 1 TB spinners will have a 5V current rating of .7A or so.
See HERE
And yes, I have replaced spinners with SSD drives in laptops and the extra current draw DOES reduce the battery life noticeably.
Where SSD excels in is SPEED, not power consumption, the faster things get, the higher the power consumption will be.
For the OP, pretty much any drive of 1TB and over is going to be a "hit or miss" type of thing, the larger storage space and the faster the speed the higher chance that the drive will need an external power source to operate 100% correctly.
