| Replacement Logic/Circuit board for standard Liftmaster operators (non code rolling). Not for Security+ systems |
| For Chamberlain garage door operator models 5100 and 8100. |
| For Liftmaster operator models 1250LM, 1260LM, 1270LM, 1280LM, 220WD, 320WD. |
| Direct replacement for logic boards models 41A4252, 41A4252-4, 41A4252-6, 41A4252-6A, 41A4252-6B, 41A4252-6C, 41A4252-6D |
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