SilverStone Reaches 700W in the SFX PSU Form Factor with the SX700-G

Subject: Cases and Cooling | November 26, 2018 - 01:28 AM |
Tagged: Silverstone, SFX, PSU, power supply, modular psu, 80 Plus Gold

Everyone loves small form factor PCs these days, but there aren't many SFX power supply options that can keep up with the demands of increasingly powerful CPUs and GPUs. A number of companies have been able to hit 600 watts, and SilverStone was able to reach 800 watts, but only via its "SFX-L" form factor, which is slightly larger than the official SFX specification and therefore doesn't fit in all situations or case configurations.

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But SilverStone is back with the first true SFX PSU that hits 700 watts. The SilverStone SX700-G is an 80 PLUS Gold-rated power supply with a fully modular design, single +12V rail, and a 92mm fluid dynamic bearing (FDB) fan tuned for silent operation at low loads.

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The SX700-G includes SilverStone's flat cable design for easier cable routing and enough power cables to connect up to two GPUs and six SATA drives. It is launching with an MSRP of US$155.99 and should reach retailers in North America by mid-December. Check out the complete list of specifications below.


Model No. SST-SX700-G
Max DC Output 700W
Power density 882W per liter
Color Black
Combined +3.3V & +5V 110W
Combined +12V 700W
Input Voltage 90V ~ 264V
Input Frequency Range 47Hz ~ 63Hz
PFC Active PFC (PF>0.9 at full load)
Efficiency 87% ~ 90% at 20% ~ 100% loading
MTBF 100,000 hours
Operating Temperature 0°C ~ 40°C
Protection Over Current Protection
Over Power Protection
Over Voltage Protection
Short Circuit Protection
Under Voltage Protection
Over Temperature Protection
Connectors 1 x 24 / 20-Pin motherboard connector (300mm)
1 x 8 / 4-Pin EPS / ATX 12V connector (400mm)
2 x 8 / 6-Pin PCIE connector (400mm / 150mm)
2 x 8 / 6-Pin PCIE connector (550mm / 150mm)
6 x SATA connector ("300mm / 220mm / 100mm" x 2)
3 x 4-Pin Peripheral connector (300mm / 200mm / 200mm)
1 x 4-Pin Floppy connector (100mm)
Cooling System Single 92mm FDB fan
Form Factor SFX
Noise Level 18 dBA minimum
Dimensions (WxHxD) 125 mm x 63.5 mm x 100 mm
4.92" x 2.5" x 3.94"
Weight 1.4 Kg (3.1 lbs)
Certification 80 PLUS Gold

Source: SilverStone

November 26, 2018 | 08:33 AM - Posted by purehavuk (not verified)

Now if I was only comfortable putting a CPU higher than 65W in a small form factor build.

November 26, 2018 | 08:22 PM - Posted by pdjblum

i have three mini itx builds with 2700x's and they are fantastic

one has a vega 56, one has mini 1080, and one has a saphire special edition 580 8gb

i used a small corsair all in one on one, and a low profile noctua on the others, and they are all running aroung 4ghz on all cores without doing anything

i am using 32GB of Gskill 3200 memory and just set the bios to xmp and it runs as advertised with correct timings

the machines are relatively quiet, with the one with the corsair aio very quiet

i didn't use a SFX psu, but that would have made airflow even better

i hope this makes you a bit more comfortable

with ryzen, i can have my cake and eat it, meaning i can have a pretty much no compromise killer box in a mini itx build

not sure i will ever go back to atx

November 26, 2018 | 12:40 PM - Posted by Anonymous3343534 (not verified)

I'd love to see a size-focused mATX case that used only SFX units.
I'm not sure off the top of my head how much space would actually be saved, but it would be interesting to see given that a 700W PSU could power certain SLI/CF builds.

November 27, 2018 | 04:03 AM - Posted by Anomuumi (not verified)

Kimera Cerberus?

November 27, 2018 | 10:52 AM - Posted by Esso (not verified)

Didn't everyone go back to Corsair in the 600W sfx lines because the SilverStones were unusually loud? I wonder if that has been corrected as of yet?

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