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SilverStone SST-EX1000R-PM Cybenetics Platinum 1000W SFX 4 PCIe 5 Fully Modular Power Supply
- SFX form factor designed for the Small Form Factor (SFF) ecosystem.
- Equipped with Gen5 12V-2x6 PCIe connector, meeting Intel SFX12V V4.1 specification standard
- Cybenetics Platinum efficiency certification
- 24/7 continuous power output with 40° operating temperature
- Ultra-silent 92mm FDB fan with intelligent fan deactivation function
- Flexible embossed wire design
- Fully Modular design
- All Japanese electrolytic capacitors
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Specs
Reviews
Learn more about the SilverStone SST-EX1000R-PM
| Brand | SilverStone |
|---|---|
| Model | SST-EX1000R-PM |
| Color | Black |
|---|---|
| Type | SFX |
| Maximum Power | 1000 W |
| Fans | Silent 92mm FDB fan |
| PFC | Active |
| Main Connector | 20+4Pin |
| +12V Rails | Single |
| PCI-Express Connector | 4 x 6+2-Pin |
| SATA Power Connector | 8 |
| Max PSU Length | 125 mm |
| Modular | Full Modular |
| Efficiency | >=89% & <91% overall efficiency |
| Energy-Efficient | Cybenetics Platinum |
| Over Voltage Protection | Yes |
| Protection | Over Current Protection Over Power Protection Over Voltage Protection Short Circuit Protection Over Temperature Protection Under Voltage Protection |
| Input Voltage | 90 - 264 V |
| Input Frequency Range | 47 - 63 Hz |
| Output | +3.3V@20A, +5V@20A, [email protected], [email protected], [email protected] |
| MTBF | 100,000 hours |
| Connectors | 1 x 24 / 20-Pin motherboard connector 2 x 8 / 4-Pin EPS / ATX 12V connector 4 x 8 / 6-Pin PCIe connectors 1 x 12+4-Pin 12V-2x6 connector 8 x SATA connectors 3 x 4-Pin Peripheral connector 1 x 4-Pin Floppy connector |
| Features | SFX form factor designed for the Small Form Factor (SFF) ecosystem Equipped with Gen5 12V-2x6 PCIe connector, meeting Intel SFX12V V4.1 specification standard Cybenetics Platinum efficiency certification 24/7 continuous power output with 40° operating temperature Ultra-silent 92mm FDB fan with intelligent fan deactivation function Flexible embossed wire design Fully Modular design All Japanese electrolytic capacitors |
|---|
| Dimensions | 4.92'' x 3.93'' x 2.50'' |
|---|---|
| Weight | 2.89 lbs. |
| First Listed on Newegg | April 23, 2026 |
|---|
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Limited Warranty period (parts): 1 year
- Limited Warranty period (labor): 1 year
- Read full details
Return Policies
- Return for refund until: January 31, 2027
- Return for replacement until: January 31, 2027
- This item is covered by Newegg.ca's Extended Holiday Return Policy.
- Read full return policy for details.
We want to ensure your holiday shopping this year is hassle-free. That’s why we’re automatically extending our return policies on almost every product! For purchases placed between November 1st, 2026 and December 31, 2026 you will have until January 31, 2027 to return your product.
Manufacturer Contact Info
- Manufacturer Product Page
- Manufacturer Website
- Support Phone: +1-909-465-9596
- Support Email: usasupport@silverstonetek.com
- Support Website
- View other products from SilverStone
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The SilverStone SST-EX1000R-PM is a fully modular 1000W SFX power supply for compact gaming PCs and high-performance small-form-factor workstations. It combines Cybenetics Platinum efficiency, a Gen5 12V-2x6 connector, dual EPS connectors, and a 125mm chassis for powerful SFF builds with modern graphics cards.
Recommended For
- Builders of compact SFF gaming PCs using a high-end graphics card who need a 1000W SFX supply with a native 600W PCIe 12V-2x6 connection and enough headroom for transient GPU loads.
- SFF enthusiasts building quiet gaming systems who value low PSU noise during normal use, because the unit supports selectable semi-passive operation and received a Cybenetics A noise rating in testing.
- Small-form-factor users who want a current-generation power platform for demanding GPUs, with ATX 3.1/SFX 4.1 compliance, native 12V-2x6 support, and fully modular cables for tighter cable management.
- Compact workstation or rendering-PC builders who run sustained CPU and GPU workloads and want a high-capacity SFX unit rated for continuous operation rather than a lower-wattage compact PSU.
Real-World Use Scenarios
- A builder assembling a high-end small-form-factor gaming PC can use this PSU with a modern graphics card that supports a native 12V-2x6 connection; the result is a compact system with one direct GPU power cable instead of relying on multiple adapters, provided the case supports an SFX PSU and the cable is fully seated.
- Someone upgrading a compact gaming PC can replace a lower-wattage SFX unit without moving to a larger ATX power supply; the 1000W capacity provides room for a high-end GPU, a power-hungry CPU, and short-lived load spikes while preserving the smaller case layout.
- A user building a quiet office, living-room, or studio PC can benefit from the semi-passive fan mode during light workloads; the PSU may remain fanless or very quiet at idle, while the 92mm fan activates as sustained internal heat or power demand increases.
- A compact workstation user running long renders, code builds, simulations, or video exports can use the PSU for sustained high-load operation; independent testing evaluates continuous full-load behavior, while the Platinum efficiency rating helps limit wasted power and heat compared with a less efficient unit.
- A builder working inside a tightly packed SFF case can install only the cables needed for the motherboard, CPU, GPU, and storage devices; the fully modular design reduces unused cable clutter and makes it easier to route wiring around small chambers.
- A compact storage or creator system with several SATA drives can use the available SATA and peripheral connections without adding splitters immediately; the practical outcome is a cleaner initial build, although the case must still have enough physical room for the drives and cable connectors.
Spec Summary
| Attribute | Value |
|---|---|
| Best For | Small form factor (SFF) desktop or server builds needing 1000W of fully modular power, a single +12V rail, and Gen5 12V-2x6 PCIe support |
| Power Output And Efficiency | 1000W maximum output with a single +12V rail rated at 83.3A, active PFC, and Cybenetics Platinum efficiency certification with >=89% and <91% overall efficiency |
| Form Factor And Cooling | SFX power supply measuring 125 x 100 x 64 mm (4.92 x 3.93 x 2.50 in), cooled by one silent 92mm FDB fan with intelligent fan deactivation |
| Modular Cabling And Connectors | Fully modular cabling with a 24/20-pin motherboard connector, two 8/4-pin EPS/ATX 12V connectors, four 8/6-pin PCIe connectors, one 12+4-pin 12V-2x6 connector, eight SATA connectors, three 4-pin peripheral connectors, and one 4-pin floppy connector |
| Input And Operating Range | 90–264V AC input with a 47–63Hz frequency range and continuous 24/7 power output at a 40°C operating temperature |
| Protection And Reliability | Over-current, over-power, over-voltage, under-voltage, short-circuit, and over-temperature protection, with an MTBF of 100,000 hours |
| Physical Details | Black chassis weighing 2.89 lb and using flexible embossed wires and Japanese electrolytic capacitors |
| Model Identifiers | SilverStone SST-EX1000R-PM |
Reference Q&A
Q: SilverStone EX1000R-PM or Corsair SF1000: which 1000W SFX PSU should I buy?
A: Choose the SilverStone EX1000R-PM when you prioritize a compact 125 mm SFX chassis, a native Gen5 12V-2x6 connector, and measured low-noise behavior in professional testing. Choose the Corsair SF1000 when its seven-year warranty, individually sleeved cables, and established Type 5 cable ecosystem are more important. Both provide 1000W capacity, Cybenetics Platinum efficiency, fully modular cabling, a 92 mm fan, and ATX 3.1-class GPU support.
Q: Is the SilverStone EX1000R-PM worth choosing over an 850W SFX PSU?
A: Choose the EX1000R-PM when the system uses a high-power GPU, sustained CPU and GPU workloads, or you want additional capacity for future upgrades. Choose an 850W model such as the SilverStone Extreme 850R when the estimated system draw is comfortably below 850W and lower capacity is sufficient. Both models use the SFX form factor, Cybenetics Platinum efficiency, fully modular cabling, and a native modern GPU power connector, so the main difference is 150W of additional continuous output and greater load headroom.
Q: SilverStone EX1000R-PM or the older SilverStone SX1000: which is better for a small-form-factor build?
A: Choose the EX1000R-PM when the case requires a standard 125 mm SFX PSU, a Gen5 12V-2x6 connector, and a newer SFX12V V4.1 design. Choose the older SX1000 when the case specifically supports SFX-L and its additional PCIe connector capacity is useful. The SX1000 has established professional test data and can deliver strong performance, but its longer SFX-L chassis is less suitable for cases designed around standard SFX dimensions.
Q: Should I buy the SilverStone EX1000R-PM or step up to a 1200W SFX-L PSU?
A: Choose the EX1000R-PM for tighter SFF cases because it uses a standard 125 mm SFX chassis and provides 1000W of continuous output. Choose a 1200W model such as the SilverStone Extreme 1200R when the system has unusually high sustained power demand and the case supports a 130 mm SFX-L PSU. The 1200R provides 200W more capacity, but its longer SFX-L form factor and higher load-related fan noise make the EX1000R-PM the more practical fit for many compact builds.
Q: Will this power supply work with a high-end graphics card that uses a 12V-2x6 connector?
A: Yes. The SST-EX1000R-PM includes a native Gen5 12V-2x6 connector and provides up to 1000W of continuous power. It is suitable for high-performance graphics cards when the card and complete system fall within the manufacturer’s recommended power requirements.
Q: Is this power supply suitable for a small-form-factor gaming or workstation PC?
A: Yes, provided the case supports the SFX form factor and a PSU up to 125 mm long. Its compact SFX design, fully modular cables, 1000W output, and native 12V-2x6 connector make it appropriate for space-constrained systems with demanding CPUs or GPUs.
Q: Will the fan stay quiet during normal use?
A: The unit uses a 92 mm fluid-dynamic-bearing fan with intelligent fan deactivation, so the fan can stop during suitable low-load conditions. Under sustained gaming or workstation loads, the fan may run and become audible; actual noise depends on system load, ventilation, and case acoustics.
Q: Is 1000W more power than most compact PC builds need?
A: For basic office, media, or mid-range gaming systems, 1000W is usually more capacity than necessary. It is most suitable for compact PCs using a high-performance graphics card, a power-demanding processor, future component upgrades, or systems that benefit from additional power headroom.
Q: Does the fully modular design make installation easier in a small case?
A: Generally, yes. Only the required cables need to be connected, which can reduce cable clutter and make routing easier in an SFF enclosure. The unit includes motherboard, EPS, PCIe, 12V-2x6, SATA, peripheral, and floppy connectors, but case clearance and cable-bend space should still be checked before installation.
Q: Do I actually need a 1000W SFX power supply for an SFF gaming PC?
A: Only if the system has unusually high peak power requirements, such as a flagship GPU paired with a high-power CPU, or if substantial upgrade headroom is important. For many single-GPU SFF builds, a lower-wattage SFX PSU may be sufficient, so calculate expected system power before paying for 1000W capacity.
Q: Will the SST-EX1000R-PM fit any SFF case that supports an SFX power supply?
A: It uses the SFX form factor and measures 125 × 63.5 × 100 mm, so it is intended for cases with standard SFX support. However, case clearance for the modular connectors, cable bend radius, and GPU power cable routing must still be checked separately.
Q: Is the SST-EX1000R-PM likely to be quiet enough for an SFF build?
A: It has a 92mm fluid-dynamic-bearing fan and an intelligent fan-stop function, which should reduce noise at low or moderate loads. Noise under sustained high load is less predictable because a compact 1000W PSU may need higher fan speeds; community reports on earlier SilverStone 1000W units are mixed.
Q: What are the main trade-offs of choosing this PSU over a lower-wattage SFX model?
A: The main benefits are 1000W capacity, Cybenetics Platinum efficiency, full modular cabling, four PCIe 6+2 connectors, and a native Gen5 12V-2x6 connector. The trade-offs are that many systems will not use its full capacity, and the extra cabling and high power density can make cable management, heat, and cost more important in a compact case.