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ASUS ROG Loki SFX-L 850W Platinum vs FSP Dagger Pro SFX 850W: Comparison
What is the difference between ASUS ROG Loki SFX-L 850W Platinum and FSP Dagger Pro SFX 850W?
The first real difference is fan size: ASUS ROG Loki SFX-L 850W Platinum 120 mm against FSP Dagger Pro SFX 850W 92 mm. FSP Dagger Pro SFX 850W also leads on pcie 8-pin connectors, 3 on the ASUS ROG Loki SFX-L 850W Platinum versus 4 on the FSP Dagger Pro SFX 850W. ASUS ROG Loki SFX-L 850W Platinum also leads on mtbf, 120000 hours on the ASUS ROG Loki SFX-L 850W Platinum versus 100000 hours on the FSP Dagger Pro SFX 850W.
Who each one is for
The ASUS ROG Loki SFX-L 850W Platinum is the one to take for builders targeting a small-form-factor build running a high-end GPU and anyone who wants fully modular cabling with native 12V-2x6 support, though it is not built for builds needing more than 850W of continuous headroom and buyers who need a full-size ATX chassis. The FSP Dagger Pro SFX 850W suits SFF builds running RTX 4080/4090-class GPUs and buyers wanting native 12V-2x6 in a compact form factor, though it is not the pick for standard ATX tower builds and noise-sensitive quiet builds under sustained load.
Where the two are identical
The common ground is wider than the gap: wattage, modularity, warranty, atx standard and single +12v rail are identical here. They match on 8 further specifications as well.
Which is cheaper, ASUS ROG Loki SFX-L 850W Platinum or FSP Dagger Pro SFX 850W?
At the last price check the FSP Dagger Pro SFX 850W was $160 and the ASUS ROG Loki SFX-L 850W Platinum $220, a 38% premium.
Frequently asked questions
Do the ASUS ROG Loki SFX-L 850W Platinum and FSP Dagger Pro SFX 850W differ on 80 plus rating?
Yes. 80 PLUS Rating reads Platinum on the ASUS ROG Loki SFX-L 850W Platinum versus Gold on the FSP Dagger Pro SFX 850W.
Is the 12V-2x6 Connectors the same on the ASUS ROG Loki SFX-L 850W Platinum and FSP Dagger Pro SFX 850W?
It is. Both are listed at 1, so it is not a reason to pick one over the other.
Specs and benchmarks
Brand
- ASUS ROG Loki SFX-L 850W Platinum
- ASUS
- FSP Dagger Pro SFX 850W
- FSP
Wattage
- ASUS ROG Loki SFX-L 850W Platinum
- 850 W
- FSP Dagger Pro SFX 850W
- 850 W
80 PLUS Rating
- ASUS ROG Loki SFX-L 850W Platinum
- Platinum
- FSP Dagger Pro SFX 850W
- Gold
Model Number
- ASUS ROG Loki SFX-L 850W Platinum
- ROG Loki SFX-L 850W Platinum
- FSP Dagger Pro SFX 850W
- Dagger Pro 850W
ATX Standard
- ASUS ROG Loki SFX-L 850W Platinum
- ATX 3.1
- FSP Dagger Pro SFX 850W
- ATX 3.1
Form Factor
- ASUS ROG Loki SFX-L 850W Platinum
- SFX-L
- FSP Dagger Pro SFX 850W
- SFX
+12V Rail Amperage
- ASUS ROG Loki SFX-L 850W Platinum
- 70.8 A
- FSP Dagger Pro SFX 850W
- 70.83 A
Single +12V Rail
- ASUS ROG Loki SFX-L 850W Platinum
- Yes
- FSP Dagger Pro SFX 850W
- Yes
Cybenetics Efficiency
- ASUS ROG Loki SFX-L 850W Platinum
- Platinum
- FSP Dagger Pro SFX 850W
- Gold
Cybenetics Noise
- ASUS ROG Loki SFX-L 850W Platinum
- A
- FSP Dagger Pro SFX 850W
- A-
12V-2x6 Connectors
- ASUS ROG Loki SFX-L 850W Platinum
- 1
- FSP Dagger Pro SFX 850W
- 1
Zero-RPM Mode
- ASUS ROG Loki SFX-L 850W Platinum
- Yes
- FSP Dagger Pro SFX 850W
- Yes
Sleeved Cables
- ASUS ROG Loki SFX-L 850W Platinum
- No
- FSP Dagger Pro SFX 850W
- No
PCIe 8-pin Connectors
- ASUS ROG Loki SFX-L 850W Platinum
- 3-25%
- FSP Dagger Pro SFX 850W
- 4
Connector Count
- ASUS ROG Loki SFX-L 850W Platinum
- 1x 24/20-pin ATX, 2x EPS 4+4-pin, 1x PCIe 16-pin, 3x PCIe 8-pin, 6x SATA, 4x Peripheral
- FSP Dagger Pro SFX 850W
- 1x 24-pin ATX, 2x EPS 4+4, 1x 12V-2x6, 4x PCIe 6+2-pin, 6x SATA, 2x Molex
Fan Size
- ASUS ROG Loki SFX-L 850W Platinum
- 120 mm
- FSP Dagger Pro SFX 850W
- 92 mm
Fan Model / Bearing
- ASUS ROG Loki SFX-L 850W Platinum
- 120mm double ball bearing (CF1225H12D)
- FSP Dagger Pro SFX 850W
- 92mm ball bearing
OEM / Platform
- ASUS ROG Loki SFX-L 850W Platinum
- Great Wall
- FSP Dagger Pro SFX 850W
- FSP
Japanese Capacitors
- ASUS ROG Loki SFX-L 850W Platinum
- Yes
- FSP Dagger Pro SFX 850W
- Yes
EPS 8-pin Connectors
- ASUS ROG Loki SFX-L 850W Platinum
- 2
- FSP Dagger Pro SFX 850W
- 2
SATA Connectors
- ASUS ROG Loki SFX-L 850W Platinum
- 6
- FSP Dagger Pro SFX 850W
- 6
Molex Connectors
- ASUS ROG Loki SFX-L 850W Platinum
- 4
- FSP Dagger Pro SFX 850W
- 2
Cable Lengths
- ASUS ROG Loki SFX-L 850W Platinum
- ATX 450mm, EPS 550mm, 16-pin 460mm, PCIe 450mm, SATA 300+190+90mm, Molex 300+100+100+100mm
- FSP Dagger Pro SFX 850W
- 24-pin 450mm, EPS 450mm, PCIe 450mm, SATA 450-600mm
Length
- ASUS ROG Loki SFX-L 850W Platinum
- 125 mm
- FSP Dagger Pro SFX 850W
- 100 mm
Colour
- ASUS ROG Loki SFX-L 850W Platinum
- Black
- FSP Dagger Pro SFX 850W
- Black
Fan Bearing
- ASUS ROG Loki SFX-L 850W Platinum
- Ball
- FSP Dagger Pro SFX 850W
- Ball
MTBF
- ASUS ROG Loki SFX-L 850W Platinum
- 120000 hours
- FSP Dagger Pro SFX 850W
- 100000 hours-17%
Modularity
- ASUS ROG Loki SFX-L 850W Platinum
- Fully Modular
- FSP Dagger Pro SFX 850W
- Fully Modular
Protections
- ASUS ROG Loki SFX-L 850W Platinum
- OPP, OVP, UVP, SCP, OCP, OTP
- FSP Dagger Pro SFX 850W
- OCP, OVP, SCP, OPP, OTP
Price
- ASUS ROG Loki SFX-L 850W Platinum
- 219.99 USD
- FSP Dagger Pro SFX 850W
- 159.99 USD
Warranty
- ASUS ROG Loki SFX-L 850W Platinum
- 10 years
- FSP Dagger Pro SFX 850W
- 10 years
Which one should you pick?
Choose ASUS ROG Loki SFX-L 850W Platinum if you want the higher wattage (850 W vs 850 W), the higher 12V-2x6 connectors (1 vs 1) and the higher MTBF (120000 hours vs 100000 hours).
Choose FSP Dagger Pro SFX 850W if you want the higher PCIe 8-pin connectors (4 vs 3).
Price comparison
| Retailer | ASUS ROG Loki SFX-L 850W Platinum | FSP Dagger Pro SFX 850W |
|---|---|---|
| Amazon | $219.99 View on Amazon | $159.99 View on Amazon |
Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.
Verdict
ASUS ROG Loki SFX-L 850W Platinum
8.8 / 10 Expert Rating
A best-in-class 850W Platinum-rated SFX-L unit for a small-form-factor build running a high-end GPU, held back only by its premium price.
FSP Dagger Pro SFX 850W
8.3 / 10 Expert Rating
One of the few 850W SFX-L units with native ATX 3.0 support, ideal for high-end small-form-factor builds.




