Yealink SIPPWR19V4.7AA, 19VDC 4.74Amp Replacement Power Supply Unit for MCORE $150.00 Yealink SIPPWR19V4.7AA, 19VDC 4.74Amp Replacement Power Supply Unit for MCORE Quantity: Add To Cart Added! Yealink SIPPWR19V4.7AA, 19VDC 4.74Amp Replacement Power Supply Unit for MCORE