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Silverstone Introduces World's First 1000W SFX Power Supply

Silverstone SX1000
(Image credit: Silverstone)

SFX PSUs are great compact units for small form factor builds and have come in all wattage sizes from 350-450W up to 750-850W configurations, until now. Silverstone has an all-new SST-SX1000-LPT SFX PSU with a whopping 1000W capacity, a world-first for SFX power supplies. Availability is unknown at this time.

The SST-SX1000-LPT SFX is an 80 PLUS Platinum certified 1000W fully modular PSU with an SFX-L form factor, the unit comes with all the necessary cables you'll need for a high-end machine, including one 24 pin, one 4+4 pin CPU connector, dual 6+2 PCI-E connectors, four SATA connectors, three molex, and one 4p floppy connector.

Specs-wise the unit features 25A +3.3V and +5V rails, the +12V is capable of 83.3A, +5VSB 3.0A, and the -12V 0.3A. For efficiency, the unit is capable of around 90% efficiency at 20%-100% load which is very good. For cooling the SST-SX1000-LPT SFX features a 120mm fan with a passive mode that enables under 200W of power consumption. If you maintain 300-700W of power consumption the fan spins at a very low 900RPM, as you go beyond 800W of power consumption, the fan starts to spin much faster around 1400-1750RPM. Keep in mind, this is an impressive amount of power going thru a very tiny PSU, so audible cooling near 1000W of load should be expected.

Overall, the unit looks like a perfect solution for feeding today's power-hungry gaming machines. With the introduction of Nvidia's Ampere GPUs and Intel's 10th Generation of Core CPUs, power consumption has gone up significantly for high-end systems, making 750W power supplies a requirement to power these behemoths. With the SST-SX1000-LPT SFX you'll have extra headroom to spare and high power efficiency if you need a compact PSU in your power-hungry PC.

  • hotaru.hino
    Now only if there was hardware powerful enough that can be stuffed in cases where SFX would be required.

    Although it would probably just as nice in a larger case.
    Reply
  • spongiemaster
    hotaru.hino said:
    Now only if there was hardware powerful enough that can be stuffed in cases where SFX would be required.

    Although it would probably just as nice in a larger case.
    Water cooled 3080/3080 FE cards should easily fit into most SFX compatible cases.
    Reply
  • sieade245
    I've had my Silverstone SFX 450W PSU for almost 10 years now. The fan was a bit noisy so I ripped this out and fitted a proper one when I first got it, been silent ever since. Even though its only 450W, its run without issue on all the hardware I've thrown at it since then. I5-2500K, I7-3770K and now I7-8700 coupled over the years with Nvidia Geforce cards a GTX 670 then a GTX 970, GTX 1080 and now currently a GTX 1080TI, despite Nvidia themselves recommending a 600W minimum supply. Using a wattmeter at the wall, the system pulls around 400W on full load so still got a tiny bit of headroom too. Cracking PSU, this one should be even better. Hope they selected a better fan for this one though.
    Reply
  • 2Be_or_Not2Be
    That headline should be fixed. This is NOT a SFX PSU whose dimensions hardly exceed a 92mm fan. This is the larger, extended SFX-L version; it comes with a 120mm fan. That "-L" makes all the difference.
    Reply