1) Cat.5e keystone jack for RJ45: a) Model: M244, M245-1/2/3/4/5 b) M245-1 to M245-5 series meet ISO/IEC11801, TIA/EIA 568A c) Used for wall plates d) Dust cover available e) Fit for wires AWG22-26 f) Plug insertion life 750 cycles (min.) g) 50 micro inches of gold plation on contacts h) Material: PC, PPO i) Color: i) M244: white ii) M245-1: white iii) M245-2: yellow iv) M245-3: blue v) M245-4: red vi) M245-5: black 2) Cat.5e keystone jack unneeded tools: a) Model: M246 b) Meet ISO/IEC 1801 c) Have a dust cover d) Need not special tool for connecting wires 3) Cat.5e shield keystone jack: a) Model: M247 b) Meet ISO/IEC 11801 standard c) Fully shielded RJ45 (8P8C) 4) Cat.6 keystone jack: a) Model: M255, M255-1 b) Meet ISO/IEC6, TIA/EIA 5) Telephone jack: a) Model: M256-1/2/3/4/5 b) For voice system c) Contact with gold plated d) Fit for wire AWG22-26 e) Color: i) M256-1: white ii) M256-2: yellow iii) M256-3: blue iv) M256-4: red v) M256-5: black