Corsair
Corsair HX1200i (ATX 3.1)
1,200 W · 80 PLUS Platinum · Full
8.3
$280Nov 9
SilverStone SX1000R Platinum
A 1000 W SFX-L unit with a 12VHPWR connector, Cybenetics Platinum efficiency and semi-fanless cooling for compact high-end builds.
- 1,000 W
- Cybenetics Platinum
- Full
- ATX 3.0
- SFX-L
PCPR score
7.7
Good
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The short version
SilverStone's SX1000R Platinum packs 1000 W into a 130 mm SFX-L chassis with a single 83.3 A 12 V rail, Cybenetics Platinum efficiency, all-Japanese capacitors and a 120 mm dual ball bearing fan with semi-fanless operation. It is fully modular with one 12VHPWR connector and four 8-pin PCIe connectors. It suits compact builds with power-hungry GPUs, though SilverStone specifies it to SFX12V 4.0 rather than ATX 3.1.
Pros
- 1000 W in an SFX-L chassis
- 12VHPWR connector and four 8-pin PCIe connectors
- Cybenetics Platinum efficiency
- Semi-fanless 120 mm dual ball bearing fan
Cons
- Built to SFX12V 4.0, not ATX 3.1
- 130 mm SFX-L length rules out cases limited to 100 mm SFX units
- The ATX cable's 4-pin sense wire must be connected to the PSU's modular interface as SilverStone shows
Best for
- Compact high-end gaming builds
- SFX-L cases that need 1000 W
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Full specifications
Core
- Wattage
- 1,000 W
- Form factor
- SFX-L
- Efficiency
- Cybenetics Platinum
- ATX standard
- ATX 3.0
Features
- Modularity
- Full
Physical
- Length
- 130 mm
- Color
- Black
Connectivity
- 12V-2x6 / 16-pin
- 1
- PCIe 8-pin
- 4
- EPS 8-pin
- 2
- SATA power
- 8
- Molex
- 3
Cooling
- Fan size
- 120 mm
- Zero-RPM mode
- Yes
Compatibility notes
- SFX-L form factor, 130 mm long
- Specified to SFX12V 4.0 with a 12VHPWR connector rather than ATX 3.1; atx_version recorded as ATX 3.0, its closest equivalent
- The ATX cable has a 4-pin sense wire that must connect to the PSU's modular interface
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Where to buy
- Buy from the maker
SilverStone official page
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Common questions
Is the SX1000R Platinum ATX 3.1?
SilverStone lists it as SFX12V 4.0 and PCIe 5.0 with a 12VHPWR connector rather than ATX 3.1, so it does not claim the newest ATX revision.
Will it fit an SFX-only case?
Only if the case accepts SFX-L units. SilverStone lists 130 mm depth, which is longer than a standard 100 mm SFX power supply.
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