MEM2600XM-128D= 128MB 100 pin DRAM memory for Cisco Router 2610XM 2611XM 2620XM 
2621XM 2650XM 2651XM
Third Party. Major Brand. 
Warranty: Lifetime 
Support: Email us through eBay 
Memory expert since 1990. All parts are tested and guaranteed compatible.
No hassle exchanges.Brand name parts only- No unknown and overclocked parts. 
Quick shipping.