What are the dimensions of this power supply, and will it fit in a standard ATX case?

The dimensions of the power supply are 5.9 W x 3.4 H x 5.5 D inches, and it is designed to fit ATX / PS2 form factor casing.

Is this power supply compatible with both Intel and AMD motherboards?

Yes, this power supply is compatible with both Intel and AMD motherboards as indicated in the product title.

double click image to zoom in

Shop All MyVolts Products | Visit GuoLongSheng Shop Store

Quiet 800 Watt for Intel AMD Desktop PC ATX Power Supply SLI PCI-E SATA 12V NEW

Mash cable sleeve for easy cable management *Short circuit and over voltage protection *Ball bearing fan and matel gurad grill *High energy efficiency
120mm large fan design for optimal system cooling and maximizing performance *Matte black color coating *SLI (Scalable Link Interface) Ready *Mash cable sleeve for easy cable management
Item included: One PC Power Supply Dimension: 5.9 W x 3.4 H x 5.5 D Inch fit ATX / PS2 form factor casing.
Input / Output: Input: 115-230V 60/50hz 10-6A
Connectors: 24/20-pin x1 (20pin convertible), ATX 4+4 pin X 1, PCI-Express 6 pin X 1,PCI-Express 6+2 pin X 1, SATA X 4, Molex 4 pin X 4, Floppy X 2