Lian Li has (rather unexpectedly) announced a pair of SFX-L power supplies, with the PE-550 and PE-750 small form-factor PSUs.
Lian Li PE-750 SFX-L power supply
SFX-L is the slightly longer (hence the "L") version of SFX, and permits more powerful designs and larger, quieter fans than standard SFX. Of the two new models from Lian Li the PE-550 is an 80 Plus Gold PSU rated at 550W, and the PE-750 is an 80 Plus Platinum model boasting a whopping 750W from this tiny form-factor.
Lian Li has doubtless contracted the manufacture of these PSUs, as the post on SFF Network has concluded: "The 550W at least is from Enhance according to the UL number and the possibly the 750W based on the heatsink design."
Lian Li PE-550 SFX-L power supply
The 750W model now bests SilverStone in the SFX power category, eclipsing their 700W SFX-L model shown at CES this year (and which is still not listed on their site). Just why anyone would need 750W for what would presumably be a mini-ITX system (limited as mITX motherboards are, with only one PCI Express x16 slot); but the benefits of SFX are certainly appreciated the moment one begins working inside of an enclosure such as the NCASE M1.
The PSUs are fully modular with flat, ribbon style cables (PE-750 pictured)