That's what I thought it was, but Wakshaani corrected it. Apparently, the modular version of a limb has the "connector" built in, which is why it has less capacity. So if you have the connector, you can just connect a fully normal limb to that port and run with it.
So, corrected numbers would be 5, 5, and 4 from upper arm to hand.
Right but say a Modular full arm is simply one piece (with only the connector at the shoulder). If I wanted to have a connector at the elbow wouldn't that cost Capacity?
Like I said, the way you just laid it out is how I thought it was supposed to be. But according to Wakshanni, the intent was apparently for the Modular Connector to allow you to connect
any normal limb to that port. Essentially, if you've bought the connector, you don't also have to purchase the limb as modular.
The first sentence of the description of the Modular Limb gear entry on page 88 of Chrome Flesh is the part that confuses me: "Any cyberlimb may be purchased with a modular connector, allowing it to be connected to another modular connector." By that statement, it seems like the gear is saying that for a limb to be able to connect to other modular connectors, you have to purchase it as a "modular limb"
I guess the intent was for the "cost" to come out of one side or the other, not both.
So, based on what Wakshaani has said, if you've bought the modular Shoulder connector, you get to connect a full arm (no loss in capacity). Then you install a Elbow connector, which allows you to connect a lower arm, with a wrist connector and a then a hand.
So your base Essence cost would be 1.3 (1 for the Arm, + 0.3 for the connector).
Your upper arm would have 5 capacity (15 - [10] for the connector)
Your lower arm would have 5 capacity (10 - [5] for the connector)
Your hand would have 4 capacity.
As I've said, Shinobu, my original reading was the same as yours. The modular connector was required to utilize a modular limb. But I guess if you have the modular connector port the cost of making a normal cyberlimb "plug in" is negligible. Buying the Modular limb version (the one that costs extra nuyen and has less capacity) is like buying a limb with the connector taking up part of that limb, rather than taking up space in the body.