That's a 3 kg box right there. Note that on the box it says that the Strider is PCI-E & SLI ready. Keep that in mind as I have a little story to tell you.

Carefully packaged and note that the modular cables already have been attached for you.

The Strider ST60F is a quad rail, modular 600W power supply. It's actually based on the 650 Watts ST65ZF, a non-modular power supply, but the 80mm fan has been replaced with a quieter 120MM and some heatsinks have been modified as a result of that. The Silverstone ST60F is colossal, but luckily the modular design does offer a weight and case space savings by eliminating unneeded cables.

The Strider has one fan cooling the PSU; the air flow is moved through the honeycomb back panel. This actually is an Adda 120mm sleeve bearing fan. With the fan running at its normal speed, the noise level is a sheer 24 db, very good.