Support ring modular jack 2-way for holding modular jacks ITT Canon and Panduit. Notes: Only for screw fastening. Suitable for: ITT Canon: MK2 808, MK3 and all other jacks in this product line. Panduit: Jacks from the MINI-COM product line such as CJS 588 Cat.5 shielded, CJ 588 BL Cat.5 unshielded.