We have all range of IBM laptop replacement adapter.
When you order, you just need to tell us the output Voltage& Amp and Tip size. We will offer the adapter by your request.
 
Input: 110-240V, 50/60HZ

Output:
16V  4.5A
20V  4.5A
16V  3.36A
20V  3.25A
16V  3.5A

Tip types:
5.5mm*2.5mm
7.9mm*5.5mm*0.9mm