Question 1

How many hard drives can i plug in?

Accepted Answer

As of January 2020, this PSU ships with these cables:

1 - 24/20 PSU mobo connector
1 - 8/4 PSU mobo connector
3 - 8/6 PCI-e connectors with 2 connectors per cable
1 - SATA cable with 4 straight connectors
1 - SATA cable with 4 right angle connectors
1 - SATA cable with 2 straight connectors
1 molex cable with 3 connectors
1 molex with 2 connectors
1 molex to SATA cable with 2 connectors
1 molex to SATA 3.3 adapter

Bottom line: one can connect however many peripherals as the supplied cables will provide, limited only by the number of mobo connectors. So, for example, if the mobo has 8 SATA connectors, one can connect 8 SATA devices be they HDD, ODD, or any other SATA peripheral. If one has devices with molex connectors, one can connect 5 such devices directly.

Question 2

Is this PSU fully modular or just partial? Which cables are able to be unplugged?

Accepted Answer

I just bought this 08/04/2019 from newegg because it was on sale there.  The one I received is FULLY MODULAR.
I like it, so far, so good.

Question 3

I have a 600 watt APC UPS (Back UPS Pro 1,000). Am I safe with this 550 Watt Seasonic?

Accepted Answer

The 80 plus bronze rating of the power supply describes the efficiency of the power supply. Based on this rating, the power supply will draw a maximum of 612 Watts of power from the wall when it is supplying 550 Watts to your computer.  This assumes that your computer is actually drawing 550 Watts from the power supply when the power goes out.

Question 4

Is it packaged with cables and everything?

Accepted Answer

Yes, all modular cables are included in a nice bag! All cables are of nice quality!

ASIN	B00918MEZG
Best Sellers Rank	#7,645 in Computer Power Supplies
Brand	Seasonic
Compatible Devices	Personal Computer
Connector Type Used on Cable	ATX, EPS
Cooling Method	Air
Customer Reviews	4.5 4.5 out of 5 stars (363)
EU Spare Part Availability Duration	5 years
Fan Size	12 centimeters
Form Factor	ATX
Global Trade Identification Number	04711173872108
Item Dimensions	6.3 x 3.39 x 5.9 inches
Item Part Number	SSR-550RM
Item Weight	5.8 pounds
Manufacturer	Seasonic
Maximum Input Voltage	230 volts_of_alternating_current
Mfr Part Number	SSR-550RM
Minimum Input Voltage	100 volts_of_alternating_current
Model Number	SSR-550RM
Number of Fans	1
Number of Items	1
Output Wattage	550 watts
Power Supply Design	Modular
System Bus Connector Type	ATX, EPS
UPC	081159924232 851905148973 803982989604 163121420239 132018315293 172304327197 807320177364 809392581483 809199908247
Upper Temperature Rating	105 °C
Wattage	550

Seasonic G Series 550 SSR-550RM 550W 80+ Gold ATX12V & EPS12V Semi-Modular SLI Ready CrossFire Ready 105 °C Japanese Capacitor 5 Year Warranty Power Supply

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