I use 2.5 “ External HDD attached to my RB5009 USB port 24/7 for monitoring purposes and tracking data for passed Network traffic for specific interfaces (because Mikrotik dont have integrated Monthly integrated network monitor). I want to ask more competent users here, is possible to make a damage to board or USB port eventually, because i use 2.5 inch HDD into case, and use power directly from RB5009 itself? For now i dont notice problems. but i use like this for about 3 months till now.
If you are worried about the USB power supply to your hard drive, then buy an external closure with separata PSU and power the disk from it, not from USB.
Check your hard disk drive power consumption, USB 3.0 should provide a minimum of 0.9A@5V, but most USB 3.x ports, including the one on the RB5009, allow for more, 1.5A@5V: https://mikrotik.com/product/rb5009ug_s_in
Max USB current (A) 1.5
usually 2.5" SATA disks are well below that, ranging in the 0.5-0.8 A, to which you may want to add some 0.1-0.2 A for the USB to SATA converter, older PATA/IDE drives needed more current, but anyway maxing out at 1 or maybe 1.2 A@5V.
So, unless you have a strange disk, you should be fine (but check nonetheless).
I don’t think it can “damage” the board, it is supposed to be protected. But when the current consumption peaks too high, the device may be unreliable.
When you observe issues like it going offline or damaging files, it may be wiser to buy a 500GB USB SSD for like $50.
For 2+ months works perfectly. I just wanted to know if “is possible” to make damage to USB port or board, due to long time of use of USB port. Is that may cause USB obsoleting, and makes weaker. If you understand what i meen.
EDIT: I found this thread that is unclear what can may happens, and not suggesting to use SSD to RB5009
As suggested, buy SSD or NVMe instead of traditional disk if you use an "old" technology.
I can only assume that long USB time usage with currents near the max value could have impact on a device tracks on a motherboard. If you can power the external disk from other source you just protect your device in advance.
Direct answer for the asked question:
I just wanted to know if “is possible” to make damage to USB port or board
is: "Yes, it could" but then the next real question is "What is the MTBF time for such config"? For that question you have to answer yourself.
I am a big believer in creating as easy of an environment as possible on electronics.
Making the 5009 provide a continuous ~6 watts of power means the 5009’s power supply is continuously working harder, which means, among other things, creating more heat, which is the mortal enemy of delicate (i.e., all) electronic components.
I may be in the minority with this cautionary perspective, but the suggestions above about powering the drive from it’s own, separate power supply would be my recommendation.
The Asmedia is just the controller/converter.
Open up the external case and read what the actual disk needs.
I will repeat myself, the standard says 0.9 A, but most ports, including that of the RB5009, allow up to 1.5 A, i.e. 1.5/0.9=166,66% of the standard.
If you bought the disk already in the case, there is no way a manufacturer would have made and sold something exceeding the standard of 0.9 A, as the disk would not have woirked on a number of USB 3.0 interfaces.
No, there is nothing to worry about, he is just spreading FUD.
The 5009 PoE model is rated to output 130W total, a 10W disk is not going to cause problems with that.
The only real risk is that you would run the USB near maximum current and thus would trigger the self-healing fuse, after a while it may not self-heal anymore. But when you do not see dropouts during actual use there is not much risk of that.
It should be OK. If you want to "protect" your USB port, then just use external chassis for the disk + it's own power supply.
Why 14 years old disk? Change it to faster SSD/NVMe one.
Tryed that also.. But its too confusing that setup. I need something very simple to understand. Graphana and Prometheus are too overloaded with featured that not someone need.
451mA that even can be powered by old USB2 ports (max500). I doubt that a SSD (or nvme) could draw less power. Nvme can be very very hungry. for giving this old disk a second, meaningful life. Don't worry about your RB.
for giving this old disk a second, meaningful life. Don't worry about your RB.