Lenovo System x3550 M2 x3650 M2 Series Intel Chipset 5520 Socket LGA1366 Server Motherboard 49Y6514 11S49Y6514.
Chipset: Intel 5520
Socket: Dual Intel LGA1366
Max Supported Memory: 128GB
Number of Memory Slots: 16
Memory Type: DDR3 SDRAM
Speed: 1333MHz
Type: Server Motherboard