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Reviews on the SilverStone Extreme Series EX850R are pretty rough. It's stiff non-sleeved cables seem are a major pain for SFF and it's noisy too - especially relative to the something like the SF750 for example. The EX850R's 12VHPWR cable is also capped at 450W so no real advantage power delivery wise vs a SF750 unless you're looking for more watts on the CPU side to run a 13900k or something combined with a high wattage (but sub 450W) GPU. The EX850R looks extremely similar to the Lian Li SP850 which also technically has 12VHPWR, but capped to 350-400W and is clearly labeled as not supporting Nvidia 40 series cards.Right now I think ASUS ROG Loki SFX-L 850 (or 1000/1200W) are the only decent option for ATX 3.0 / solid high wattage PCIE5 support. I know they're SFX-L, but like I said I don't think there's anything decent in the SFX non-L size coming anytime soon. The Corsair SF850L and Corsair SF1000L will be SFX-L too and will also support 600W via 12VHPWR whenever they get released.EDIT: Looking over the cybenetics reports the Asus ROG Loki SFX-L 750 actually performs a bit better noise and efficiency wise than either the 850 Loki unit or the upcoming Corsair 850/1000 SFX-L models so that seems like the one to go for (or possibly the Loki SFX-L 1000W, no cybenetics report on that one yet though).
Reviews on the SilverStone Extreme Series EX850R are pretty rough. It's stiff non-sleeved cables seem are a major pain for SFF and it's noisy too - especially relative to the something like the SF750 for example. The EX850R's 12VHPWR cable is also capped at 450W so no real advantage power delivery wise vs a SF750 unless you're looking for more watts on the CPU side to run a 13900k or something combined with a high wattage (but sub 450W) GPU. The EX850R looks extremely similar to the Lian Li SP850 which also technically has 12VHPWR, but capped to 350-400W and is clearly labeled as not supporting Nvidia 40 series cards.
Right now I think ASUS ROG Loki SFX-L 850 (or 1000/1200W) are the only decent option for ATX 3.0 / solid high wattage PCIE5 support. I know they're SFX-L, but like I said I don't think there's anything decent in the SFX non-L size coming anytime soon. The Corsair SF850L and Corsair SF1000L will be SFX-L too and will also support 600W via 12VHPWR whenever they get released.
EDIT: Looking over the cybenetics reports the Asus ROG Loki SFX-L 750 actually performs a bit better noise and efficiency wise than either the 850 Loki unit or the upcoming Corsair 850/1000 SFX-L models so that seems like the one to go for (or possibly the Loki SFX-L 1000W, no cybenetics report on that one yet though).
