Sorry I looked at the link and thought you were buying that one.
This is the spec:
Q: What are the specs for the Line 6 Power Supplies? DC-1: (Tone Core Pedals, Pocket POD) 9.6V DC, 200mA, Center Pin: (-). The DC-1 has been discontinued and was replaced by the DC-1g.
DC-1g: (X2: XDS-Plus/XDR 95, Relay G30/G50/G90 - XD-V70/30, M5 Stompbox Modeler): 9V DC, 500mA, Center Pin: 2.1mm.
http://line6.com/support/page/kb/_/general-faq/power-supplybattery-specs-and-faq-r445