A serial communications architecture for communicating between hosts and data store devices. The first cross member has an upwardly extending retention lip having a slot formed therein to frictional receive a portion of the main-tee in a manner to retain the device thereagainst. The dielectric is etched anisotropically with a fluorocarbon plasma to remove unwanted dielectric material around the capacitor feature. Filaments prepared according to these methods are characterized by the following physical properties: elongation to break from about 17% to about 85% Young’s modulus of less than 350,000 psi, knot to straight ratio of 55-80% or load at break from 1100 to 4200 grams.