Wippermann Connex 10S0 5.9mm Chain $50.00
This 10S0 is what Wippermann refers to as their "standard" model. You get solid, standard steel links with no nickel plating. Just like their higher-end models, you get Wippermann's reusable Connex 10-speed link, so you don't need a special tool to install or disassemble it.
Wippermann offers the 10S0 with a 5.9mm pin length and 2.2mm roller width, making it perfectly compatible with all 10-speed drivetrains -- Campagnolo, Shimano, and SRAM.