can i attach external storage to an imac 24 (2 port)

See the following from https://www.apple.com/imac-24/specs/

Two Thunderbolt / USB 4 ports with support for:

• DisplayPort
• Thunderbolt 3 (up to 40Gb/s)
• USB 4 (up to 40Gb/s)
• USB 3.1 Gen 2 (up to 10Gb/s)
• Thunderbolt 2, HDMI, DVI, and VGA supported using adapters (sold separately)

I got one of these:

https://www.owcdigital.com/products/thunderbolt-3-dock-14-port

So I can attach just about anything, including my already existing drives.

However, you can get a TB3 external drive

Yes.

The 2 port iMac 24" only has two Thunderbolt 4 inputs...looking at the link you attached I only saw Thunderbolt 3 mentioned. Are you sure this works with the 2 port iMac 24"? Just curious as I just got one and I wanted to use one of the blue yeti microphones and was trying to figure out how to go about that....also the LaCie harddrive :(

Ok thanks for the clarification!