I'm planning to use two 2TB SATA SSDs as external storage with a SATA to USB-A adapter from Ugreen that supports protocols like UASP, TRIM, and SMART. However, I'm concerned about power management. I read that USB 3.0 ports can supply up to 900mAh, but my SSDs have a sticker stating they require 5V at 1.6A. Am I going to face power shortages that could lead to disconnections or data corruption? Also, I've considered getting a SATA to USB 3.2 adapter with USB-C that might offer better power delivery. Is that a good idea? Thanks!
5 Answers
It might work, but it's tricky. The 900mA and 1.6A are just minimums and maximums. Sometimes the USB port can push more power than expected, and the SSD may consume less during lighter tasks. Generally, you'll want to avoid heavy write operations if you're unsure about power supply.
Just to clarify, 900mAh translates to 0.9Amps, while your SSD requires 1.6Amps. So yes, you will need a powered connection for reliable external use. Using a powered hub or enclosure is a good idea for stability.
I get your point, but it's interesting that these adapters are available despite the power specs. What really happens if the SSDs try to draw more power than the adapter can provide? Sounds risky to me!
Check your USB ports! Some USB 3.x ports can supply more than 0.9A, which is what these enclosures are built for. If your computer has those, you’ll be okay. Otherwise, consider getting a powered enclosure or one that requires dual USB connections for more juice.
You should be fine! I've used SATA SSDs with various USB enclosures, and they generally work without problems. Whether it's USB 2.0, 3.0, or even USB-C, they tend to handle it well.
Thanks for the insights! I'm definitely leaning towards getting a powered hub now. It’s good to know I have options to avoid potential issues.
You mentioned manufacturers not giving clear info. It's baffling that SSDs are rated at 8W while USB3 ports seem to limit to 4.5W. I plan on running stress tests once I get everything set up.