- Top Pick: LIAN LI SP750 V2 750W SFX Power Supply, 80 Plus Gold, Black (SP750G.B) | ATX 3.1-ready SFX power with native 12V-2×6 cable, fully modular design, quiet 92mm FDB fan, and 10-year warranty.
- Best Value: Redragon PSU015 80+ Platium 750 Watt SFX Fully Modular Power Supply, 80 Plus Certified, 100% Japanese Capacitors & Low Noise Smart-ECO 0 RPM Fan, Full Mod Cables w/ATX Compatible Panel, White
- Premium Choice: ASUS ROG Loki SFX-L 750W Platinum Power Supply | 80 Plus & Cybenetics Platinum, Fully Modular, ATX 3.1, PCIe 5.1, 12V-2×6 Cable, PWM ARGB Fan, Aura Sync, 10-Year Warranty
Shopping for an SFX power supply is a space problem before it is a wattage problem. Small-form-factor cases give you a few inches around the motherboard, and the supply has to fit that pocket while still feeding a modern graphics card through a short, well-routed cable. The keyword makes a promise about shape, but two shapes share the name: standard SFX and the longer SFX-L, and a case built for one may not accept the other.
This guide is for mini-ITX builders, living-room PC owners, and anyone swapping a tired supply in a compact tower. In 2026 the interesting features are ATX 3.1 readiness, the native 12V-2×6 graphics connector, and fully modular cabling that keeps a cramped case tidy. Each unit below is judged only from the specs in its listing, and two ATX-style listings that never state an SFX form factor were left out.
Quick Picks
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| Product | Best for | Key spec from the title |
|---|---|---|
| Lian Li SP750 V2 (black) | Balanced SFX build | 750W, 80 Plus Gold, 92mm FDB fan |
| Redragon PSU015 | White build with a zero-RPM fan mode | 750W SFX, fully modular, Smart-ECO fan |
| ASUS ROG Loki SFX-L 750W | Efficiency-focused showpiece | Platinum, ATX 3.1, ARGB fan |
| Lian Li SP750 V2 (white) | White case matching | 750W, 80 Plus Gold, 10-year warranty |
| ASUS ROG Loki SFX-L 1200W | High-end GPU headroom | 1200W, Titanium, 12V-2×6 |
| ASUS ROG Loki SFX-L 1000W | Strong GPU and CPU pairing | 1000W, Platinum, ATX 3.1 |
| be quiet! SFX L 600W | Modest mini-ITX systems | 600W, 80 Plus Gold |
| Vetroo 850W White | Standard SFX cases needing more wattage | 850W, SFX-to-ATX bracket |
How to Choose
SFX versus SFX-L fit
A standard SFX unit is roughly 100 millimeters deep, while SFX-L is about 130 millimeters deep so it can carry a larger fan. Check your case documentation for which one it accepts. Titles that say SFX-L need the extra clearance; titles that say SFX only fit more cases. Some listings include an SFX-to-ATX bracket, which lets you use the supply in a regular tower. That flexibility is worth having if you might change cases later.
Wattage and connector requirements
For a gaming build, 750W covers many mid-range to upper-mid graphics cards and a mainstream processor. Step up to 850W or beyond for power-hungry cards or heavy overclocking. A native 12V-2×6 cable matters if your graphics card uses that connector, because adapters add bulk and one more connection to worry about. ATX 3.1 and PCIe 5.1 readiness signal compliance with the current standard.
Efficiency tiers and fan design
80 Plus Gold, Platinum, and Titanium describe efficiency, not quality in general. Higher tiers waste less power as heat, which matters inside a tiny case. Fan details help too: fluid dynamic bearing fans are listed on several units, and a zero-RPM mode keeps the fan off at light loads. Ignore generic claims such as “Japanese capacitors” as a differentiator, since many makers use them. A larger fan usually moves the same air at a lower speed, which is why SFX-L units often sound calmer.
Cables and warranty
Fully modular cabling is the main sanity saver in a small case, since you only connect what you need. Unused cables have nowhere to hide in a mini-ITX chassis, so a fixed-cable supply can block airflow. Look for warranty length, which runs from 5 to 10 years among serious brands. Budget models cut corners on the cable count and the length, so confirm that the leads reach your GPU and motherboard through the case layout. In a case where the supply sits beside the graphics card, a short run can mean a cable that stretches tight.
The 8 Best Options
Lian Li SP750 V2 (black)
A 750W SFX unit with 80 Plus Gold efficiency, ATX 3.1 readiness, a native 12V-2×6 cable, fully modular cabling, a quiet 92mm FDB fan, and a 10-year warranty. It is a well-rounded pick for most compact gaming builds. The 92mm fan is larger than the 90mm fan on some rivals, and the cable standard it ships with removes a common source of clutter in a case with no spare room.
- Strength: Native 12V-2×6 cable avoids an adapter on newer graphics cards.
- Strength: A 10-year warranty is a strong commitment for a small supply.
- Trade-off: At 750W, it leaves limited room for the very hungriest cards.
Skip it if your graphics card needs well over 750W of supply headroom, or if your case only fits a different form factor.
Redragon PSU015
A 750W fully modular SFX unit that markets Platinum efficiency, Japanese capacitors, and a Smart-ECO zero-RPM fan. The white version targets cases with a light color scheme. Its pitch is a feature-rich spec sheet, with the zero-RPM mode as the standout, though the title leaves out newer standards that other units here spell out.
- Strength: Zero-RPM fan mode keeps the unit silent at idle loads.
- Strength: Full modular cables with an ATX compatible panel.
- Trade-off: The title misspells “Platinum” and says only “80 Plus Certified,” so verify the tier.
Skip it if you want ATX 3.1 or a native 12V-2×6 cable confirmed in the title, because newer graphics cards depend on that connector.
ASUS ROG Loki SFX-L 750W
A Platinum-rated SFX-L unit with Cybenetics Platinum, fully modular design, ATX 3.1, PCIe 5.1, a 12V-2×6 cable, a PWM ARGB fan, and Aura Sync. It suits builders who want lighting and efficiency together. The ROG branding, the lit fan, and the dual certification make it a showcase part for an enthusiast who wants the case window to look finished.
- Strength: Dual Platinum certification from 80 Plus and Cybenetics.
- Strength: ARGB fan syncs with other lighting through Aura Sync.
- Trade-off: SFX-L is deeper, so some mini-ITX cases cannot take it.
Skip it if your case only supports standard SFX depth.
Lian Li SP750 V2 (white)
The same 750W SFX platform as the black unit, finished in white. It carries 80 Plus Gold, ATX 3.1 readiness, a native 12V-2×6 cable, full modularity, and a 92mm FDB fan. Buyers choose between the two Lian Li listings purely on color, which makes the decision quick; everything that matters for fit and power is identical.
- Strength: White finish suits light-themed builds.
- Strength: Identical connector and warranty set to the black version.
- Trade-off: The white version offers no spec advantage, only a color change.
Skip it if the case is dark and color does not matter.
ASUS ROG Loki SFX-L 1200W
A 1200W unit with 80 Plus and Cybenetics Titanium efficiency, ATX 3.1, PCIe 5.1, a 12V-2×6 cable, and an ARGB fan. This is the headroom choice for a flagship-class compact build. Extra capacity can keep a supply operating comfortably below its limit, which suits a small case where heat is already a concern.
- Strength: Titanium efficiency is the top tier on the list.
- Strength: Very high wattage for the largest graphics cards.
- Trade-off: SFX-L depth and a premium-tier build for such a small supply.
Skip it if your system draws far less than 1200W.
ASUS ROG Loki SFX-L 1000W
A 1000W Platinum variant of the same Loki family, with ATX 3.1, PCIe 5.1, 12V-2×6, and an ARGB fan. It sits between the 750W and the 1200W for builders wanting spare capacity. It fits someone planning a graphics upgrade in a year or two and unwilling to replace the supply again.
- Strength: 1000W gives room for a strong graphics card and CPU.
- Strength: Same 10-year warranty and connector set as the family.
- Trade-off: It needs SFX-L clearance, which limits case choices.
Skip it if a 750W unit already covers your build.
be quiet! SFX L Quiet Performance 600W
A 600W Gold SFX-L unit made for mini-ITX PCs and compact gaming systems, with the Quiet Performance branding. It is aimed at modest builds that want lower noise. A living-room box with an efficient CPU and a mid-range card is the kind of system where this supply makes sense.
- Strength: Quiet-focused design from a company known for acoustics.
- Strength: 80 Plus Gold efficiency at a modest wattage.
- Trade-off: The title does not mention modular cables, ATX 3.1, or a 12V-2×6 connector.
Skip it if you plan to run a power-hungry modern graphics card.
Vetroo 850W White
An 850W white SFX unit with 80 Plus Gold, ATX 3.1, PCIe 5.1 readiness, full modularity, a 90mm FDB fan, an SFX-to-ATX bracket, and a 10-year warranty. The bracket is useful if you later move the supply into a standard tower, which makes the purchase more future-proof than a bare SFX unit.
- Strength: 850W in standard SFX form is rare, and the bracket adds flexibility.
- Strength: Modern standards and a long warranty, with the white finish for light-colored cases.
- Trade-off: A smaller 90mm fan may spin up faster than larger fans under load.
Skip it if low noise is the top priority.
Which One Fits Your Situation
A compact build with a high-end graphics card
The ASUS ROG Loki SFX-L 1000W gives the headroom, provided the case accepts SFX-L. For a standard SFX case, the Vetroo 850W is the strongest option.
A balanced mini-ITX gaming PC
The Lian Li SP750 V2 is the all-around fit, with the native 12V-2×6 cable and the long warranty. It also leaves the 1000W and 1200W options for builders who truly need them.
A white-themed build
The white Lian Li SP750 V2 or the Redragon PSU015 match a light color scheme.
A quiet living-room PC with a modest GPU
The be quiet! SFX L 600W suits a low-power build where noise matters more than wattage. Pair it with an efficient processor and a mid-range card, and leave the headroom conversation for a different case.
Common Mistakes
- Buying SFX-L when the case supports only standard SFX depth.
- Ignoring the graphics connector and relying on an adapter in a tight case.
- Choosing wattage by marketing label instead of the real system draw.
- Assuming a white finish changes performance; the black and white Lian Li listings share one spec sheet.
- Forgetting to check cable length for the layout of a small case.
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Frequently Asked Questions
What is the difference between SFX and SFX-L?
SFX-L is longer, which leaves room for a bigger fan. Check the case manual, because a case that supports one may not support the other.
Is 750W enough for a gaming PC?
For many mid-range to upper-mid builds, yes. A flagship graphics card or heavy overclock will want more headroom.
Do I need ATX 3.1?
It is not mandatory, but it indicates readiness for current graphics cards and their power behavior. It is a sensible feature for a new build, and a good reason to pass on older designs that predate the standard.
Why are two power supplies missing from the list?
Two otherwise attractive 750W listings, from MSI and Rosewill, never state an SFX form factor in their titles, so they could not be matched to this keyword and are not covered. Always confirm the form factor on the product page before buying any unit.
