Long url links

[Robotnik]

Just wondering about creating links. 
Is it ok to have very long links? 
Like: http://www.robotnik.com/computer-hardware-ram/8gb-ddr3-1600-desktop

Is the above too long, is it better for SEO to be more to the point?

Also

For better SEO, is it better to use hyphens in a domain name or not?

[DennisSeymour]

Hyphens have worked for me in the past in terms of rankings so I dont doubt the "ranking potential" but i stopped using them as much as possible for my users sakes mainly.

It does affect the SEO, like it gets broken links since people misplace the hyphen or the link is without a hyphen so another site benefits.

That URL length of yours is ok already. Obviously, I would again prefer an easy-to-remember URL so the shorter and more targeted, the better for me. It's a preference thing.

[anthonydnelson]

I would avoid hyphens in the domain name if possible. It's easier for people to remember your domain name or type it in after hearing someone say it. Multiple hyphens can begin looking spammy.

The URL length in your example is just fine. Looks good.

[plahpoy]

Are you asking about creating incoming our outgoing links, or are you asking about how to structure your domain URLs?

[RyanPurkey]

Hi Tomek. Here's Moz's best practices: http://moz.com/learn/seo/url regarding URLs.  There's an upper limit in IE of 2048 or 2083 characters so that's one consideration, but the example you provide above seems fine.