Corsair SF1000
1000W 80+ Platinum, full-modular, no native 12VHPWR - adapter required for RTX 40-series.
Official India stock. Full warranty through the brand's India service network, standard RMA if anything goes wrong.
Full specs
Where to buy Corsair SF1000 in India
Expect to pay roughly ₹19,300-21,300 for the Corsair SF1000 in India right now, depending on offers and seller. I always recommend buying from retailers that give a proper GST invoice - it's what makes your India warranty claim smooth later.
In my years running a PC store, PrimeABGB (Mumbai) and Vedant Computers (Kolkata) have also been consistently reliable for verified stock - compare before buying.
Corsair SF1000 India Review: 1000W Platinum SFX PSU for SFF RTX 4080/5080 Builds, ₹20,110
Why an SFF Build Needs This Specifically
Most people picking a PSU are solving for wattage. SFF builders are solving for a second problem entirely: physical space. A standard ATX PSU simply won't fit in a lot of mini-ITX cases, or it fits but eats the airflow path you needed for the GPU. The SF1000 exists to solve both problems at once, big power output, tiny footprint.
Corsair's SF-series uses the SFX form factor, and the SF1000 specifically is built on the SFX-L variant, slightly deeper than a standard SFX unit to fit the extra internals a 1000W platform needs. It's still dramatically smaller than any ATX PSU, and most SFX-compatible SFF cases have a cutout sized for exactly this.
Key Specs
- Wattage: 1000W continuous
- Efficiency: 80+ Platinum
- Form factor: SFX-L (fits standard SFX cutouts in most SFF cases)
- Modularity: Fully modular, flat ribbon-style cables designed for tight cable routing
- Fan: 92mm, Zero RPM fan mode at low loads for near-silent idle
- Warranty: 10 years through Corsair's standard SF-series coverage
India Pricing
MDComputers lists the SF1000 at ₹20,110. Realistically expect a street range of about ₹19,500 to ₹21,500 across PrimeABGB, Amazon India, and Vedant Computers depending on stock. It's a niche SKU in India, so availability is patchier than mainstream ATX units, worth calling ahead or setting a stock alert if your preferred retailer is out.
India-Specific Context
SFF builds concentrate expensive parts into a small, hot enclosure, so power quality matters even more here than in a spacious ATX tower. Platinum efficiency means less waste heat inside a case that already has limited airflow, genuinely useful in Indian summers. And because SFF systems often carry flagship GPUs, a brownout or dirty power event hitting an underbuilt PSU is a more expensive mistake than usual. Buy through an authorized Rashi Peripherals partner, and if your area sees frequent cuts, run it behind a sine wave UPS.
GPU pairing: 1000W platinum gives real headroom for RTX 4080 or RTX 5080-class cards in a mini-ITX build, cards that pull high transient spikes and need a PSU that won't choke under a tight enclosure's thermal load.
Who Should Buy / Who Should Skip
Buy it if: you're building a genuine SFF or mini-ITX rig with an RTX 4080 or 5080-class GPU and your case only has room for an SFX-length PSU.
Skip it if: you're building a standard mid-tower or full-tower, there's zero reason to pay the SFX premium, go with an RM1000e or similar ATX unit for less money.
Questions
For an RTX 4070-class SFF build, yes, the SF750 covers that. The SF1000 earns its keep specifically with RTX 4080/5080-class GPUs where transient spikes need real headroom.
It fits any case with a standard SFX cutout. Its SFX-L depth is slightly longer than base SFX, so double-check your case's PSU clearance before buying, most modern SFF cases account for this already.
SF1000. The extra headroom matters more for GPUs with high transient power draw, and Platinum efficiency on the SF1000 keeps heat down inside a cramped case.