This is a genuine OEM item made by Samsung
Compatible Models : DMR57LFB/XAA-00, DMR57LFS/XAA-00, DMR57LFW/XAA-00, DMR78AHB/XAA-00, DMT300RFB/XAA, DMT400RHB/XAA, DMT400RHS/XAA, DMT800RHB/XAA, DW7933LRABB/AA-01, DW80F600UTS/AA