KEYDIY Remote and Smart Key Comparison Series Type Transponder Chip Support Frequency Programming Tools Compatibility B-Series Basic universal remote ✗ None (remote only) Adjustable 300–500 MHz KD-X2 KD-MAX KD-X4 KD Mini Vehicles & garage remotes NB-Series Universal remote universal transponder ✓ Supports ID46 & ID47 Adjustable frequency KD-X2 KD-MAX KD-X4 Vehicles using ID46 or ID47 transponder chips ZB-Series Universal smart / proximity key ✓ Supports ID46, ID47, ID48, ID49, ID4A Adjustable frequency KD-X2 KD-MAX KD-X4 Vehicles with smart key / keyless-Go systems TB-Series Smart key for Toyota / Lexus / Subaru (8A) ✓ Supports ID8A smart key Dual frequency 315 MHz / 433 MHz KD-X2 KD-MAX KD-X4 Toyota, Lexus, Subaru 8A smart key vehicles TDB-Series Smart key for Toyota / Lexus (4D / 4D ) ✓ Supports 4D smart key 315 MHz / 433 MHz KD-X2 KD-MAX KD-X4 Toyota & Lexus vehicles with 4D / 4D smart keys FGB Smart Key Smart key PCB board for BMW / Mini ✓ Supports BMW ID49 smart key 434 MHz KD-X4 BMW CAS4 / CAS4 / FEM / BDC / BDC2 / BDC3 systems MLB Smart Key Smart key PCB board for VAG MLB (2016 ) ✓ Supports VAG MLB smart key 434 MHz KD-X4 VAG MLB platform (VW, Audi, Porsche, Bentley)
