Can you locate for me said intent? I may have read it already but misinterpreted it.
Post 3 of this very thread for 1. It was also mentioned (by Wakshaani) in the very sizable Chrome Flesh Errata thread I believe. Here's his post from the first page of this thread though:
You have two basic options:
Get a modular connector installed on your body, paying out Essence, at which point you can use normal cyberlimbs and swap them when you want (the limbs have full capacity and whatnot fo rthe type that you get)
*or*
buy Modular Cyberlimbs, which have a reduced capacity due to having the modular connector built into -them- rather than your flesh.
SO!
The Modular Limbs all have a lil' less Capacity than normal, to take that into account. A modular -wrist- lets you attach normal hands, while a modular -hand- has a little less capacity but doesn't cost you that connector Essence.
if that makes sense.
I should have taken way more space to lay out some examples, but, Chrome Flesh is *bulging* with stuff, and I was killin' my word budget, even without the missing Chrome Kings section.
(incidently, Tater Tot, found in the story before the drones section of Rigger 5, has a modular cyberarm. Should anyone want to see one in action to a limited degree.)
So what does buying a modular limb do? If buying a modular full limb is effectively the same as buying a modular connector and a regular limb, then why have an entry for the modular limb?
[...]
If you can buy a connector-included modular limb, why bother listing the modular connectors? The limbs would just come with them?!
>.<
So, if we take Wakshaani's explanation as truth, then the "Modular Limbs" in the book are essentially Limbs where the modular connector is built in. That's why they have less capacity and cost a little extra, because there is space taken up by the extra shenanigans that are required to make the limb detachable.
OR, you can buy a modular connector separately, which either uses up extra essence, or takes up space in an existing cyberlimb, but allows you to connect a fully functional cyberlimb without all the extra junk that makes the modular limbs have less capacity.