COOLING SYSTEM HEAT SINK NMB TSBF0005102 66P2099 1608KL-04W-B56. CAREFULLY RECOVERED FROM A WORKING IBM SUREPOS 500 POINT OF SALE COMPUTER . MODEL:1608KL-04W-B56FRU KIT 66P2099. MODEL:1608KL-04W-B56FRU KIT 66P2099 IBM POS TERMINAL SUREPOS 500.