Lenovo ThinkPad Ultra Docking Station 40AJ | P/N SD20T34312 | Used Grade B | Tested | S/N M2H0N959. Lenovo ThinkPad Ultra Docking Station – Type 40AJ Part Number: SD20T34312Serial Number: M2H0N959 C5374Condition: Used – Grade B (Fully Working) Compatibility: ThinkPad T‑Series / L‑Series / X‑Series (USB‑C/Side Dock Models).
