SFP CAGE 1*2 1 Material:Copper 2 Surface Coating:Plate Silver or Nickel 3 Model: 1*1,1*2,1*4; 2*1,2*2,2*4 SFP CAGE 1*2SFP Optical CAGE1 Material:Copper2 Surface Coating:Plate Silver or Nickel3 Model: 1*1,1*2,1*4; 2*1,2*2,2*44 Processing: Make Moulding---Die Casting---Second Processing---Surface Coating5 Advantage: The Most Competitive Price Absolutely, Good Quality First SFP CAGE 1*2