{"product_id":"sx1000r-platinum-1000w-sfx-l-power-supply-compact-high-power","title":"SX1000R Platinum 1000W SFX-L Power Supply - Compact High Power","description":"\u003cp\u003eOur review of the SX1000R Platinum finds it aimed squarely at small form factor builders who need full desktop-class power in a compact package; the single biggest reason to buy is its 1000W continuous output in an SFX-L chassis that supports modern GPUs via the 12VHPWR standard. The reviewer notes this unit is the natural choice for mini-ITX systems that will run demanding GPUs or sustained loads, thanks to its Cybenetics Platinum efficiency and SFX12V 4.0 compatibility, while also calling out that its slightly larger SFX-L footprint and cable choices are tradeoffs to consider.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSFX-L form factor:\u003c\/strong\u003e Delivers a high 1000W output while still fitting many small form factor cases, enabling compact high-performance builds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12VHPWR PCIe support:\u003c\/strong\u003e Native support for the 12+4 12VHPWR connector and SFX12V 4.0 means modern PCIe Gen 5 graphics cards can be powered without adapters in compatible builds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1000W continuous @ 50C:\u003c\/strong\u003e The supply is rated for 24\/7 operation under sustained loads, making it suitable for long gaming or workstation sessions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAll Japanese capacitors:\u003c\/strong\u003e High quality internal components suggest long-term reliability and stable voltage under load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSemi-fanless 120mm fan:\u003c\/strong\u003e A quiet 120mm dual ball bearing fan with intelligent control reduces noise during light loads and ramps as needed under heavy use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFully modular cables:\u003c\/strong\u003e Fully modular cabling improves case routing and lets builders use only the cables they need for a cleaner interior.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThis unit is best for enthusiasts building mini-ITX or small form factor gaming and workstation PCs who want full 1000W headroom without moving to an ATX chassis. The combination of SFX-L sizing and native SFX12V 4.0 \/ 12VHPWR support makes it particularly appealing for RTX 40 series class GPU builds and for users who value high efficiency.\u003c\/p\u003e\u003cp\u003eThose who should look elsewhere include builders who strictly require the smallest possible SFX footprint (standard SFX units are smaller) or buyers who need extra-long modular cables for very large cases, since some customers report cable length as a limitation. Also, users wanting absolute silence under full load should verify noise expectations for their configuration.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHigh 1000W continuous power in an SFX-L package enables powerful compact systems.\u003c\/li\u003e\n\u003cli\u003eNative SFX12V 4.0 and 12VHPWR PCIe support simplifies powering PCIe Gen 5 GPUs.\u003c\/li\u003e\n\u003cli\u003eHigh efficiency (Cybenetics Platinum) and Japanese capacitors support reliable, efficient operation.\u003c\/li\u003e\n\u003cli\u003eSemi-fanless 120mm fan keeps noise low in typical desktop use.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSome users find cable lengths short for larger cases, which may limit routing options.\u003c\/li\u003e\n\u003cli\u003eA few reports of intermittent power-on or coil whine indicate mixed experiences with noise and initial reliability for some units.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eForm factor\u003c\/td\u003e\n\u003ctd\u003eSFX-L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContinuous power\u003c\/td\u003e\n\u003ctd\u003e1000W @ 50C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRail\u003c\/td\u003e\n\u003ctd\u003eSingle +12V rail up to 83.3A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEfficiency rating\u003c\/td\u003e\n\u003ctd\u003eCybenetics Platinum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnector support\u003c\/td\u003e\n\u003ctd\u003eSFX12V 4.0 \/ PCIe Gen 5 12VHPWR (12+4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCooling\u003c\/td\u003e\n\u003ctd\u003e120mm dual ball bearing fan, semi-fanless\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacitors\u003c\/td\u003e\n\u003ctd\u003eAll Japanese capacitors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe SX1000R Platinum is a strong choice for compact builders who need sustained 1000W power and native 12VHPWR support; its combination of high efficiency, quality components, and modular cabling offers clear value for mini-ITX gaming and workstation systems. Buyers who need the smallest SFX size or longer cables should verify fit and routing, but for most small form factor high-performance builds this is a practical, well-engineered option.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eDoes this supply support modern 12VHPWR GPUs?\u003c\/strong\u003e\u003cbr\u003eYes, it is compliant with SFX12V 4.0 and natively supports the 12+4 12VHPWR connector for PCIe Gen 5 graphics cards.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs it quiet in normal use?\u003c\/strong\u003e\u003cbr\u003eThe unit uses a semi-fanless 120mm dual ball bearing fan and is generally quiet at typical desktop loads, though some users report occasional coil whine or variable noise under certain conditions.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill it fit in all small cases?\u003c\/strong\u003e\u003cbr\u003eIt fits many SFX-L compatible small form factor cases, but it is larger than standard SFX and builders should confirm case compatibility and cable routing before purchase.\u003c\/p\u003e","brand":"SilverStone","offers":[{"title":"Default Title","offer_id":48646877315291,"sku":"B0C3TCHDDX","price":339.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61KUWdbR88L._AC_SL1500.jpg?v=1778730898","url":"https:\/\/gearmusthave.com\/products\/sx1000r-platinum-1000w-sfx-l-power-supply-compact-high-power","provider":"GearMustHave","version":"1.0","type":"link"}