Cisco Cisco IOS XE 3.5E

 lists the three optional uplink network modules with 1-Gigabit and 10-Gigabit slots. You should only operate the switch 

with either a network module or a blank module installed.

C3850-NM-4-1G 

Four 1-Gigabit small form-factor pleadable (SFP) module slots. Any 
combination of standard SFP modules are supported. SFP+ modules are not 
supported.

C3850-NM-2-10G 

Four SFP module slots: 

Two slots (left side) support only 1-Gigabit SFP modules and two slots 
(right side) support either 1-Gigabit SFP or 10-Gigabit SFP+ modules. 

Supported combinations of SFP and SFP+ modules:

Slots 1, 2, 3, and 4 populated with 1-Gigabit SFP modules.

Slots 1 and 2 populated with 1-Gigabit SFP modules and Slot 3 and 4 
populated with 10-Gigabit SFP+ module. 

C3850-NM-4-10G 

Four 10-Gigabit slots or four 1-Gigabit slots.

The module is supported only on the 48-port models.

C3850-NM-BLANK 

No uplink ports.

Catalyst 3650-24TS-L

LAN Base

Stackable 24 10/100/1000 Ethernet downlink 
ports, four 1-Gigabit SFP (small form-factor 
pluggable) uplink ports, 250-W power supply

Catalyst 3650-48TS-L

LAN Base

Stackable 48 10/100/1000 Ethernet downlink 
ports, four 1-Gigabit SFP uplink ports, 250-W 
power supply

Catalyst 3650-24PS-L

LAN Base

Stackable 24 10/100/1000 PoE+

1

 downlink ports, 

four 1-Gigabit SFP uplink ports, 640-W power 
supply

Catalyst 3650-48PS-L

LAN Base

Stackable 48 10/100/1000 PoE+ downlink ports, 
four 1-Gigabit SFP uplink ports, 640-W power 
supply

Catalyst 3650-48FS-L

LAN Base

Stackable 48 10/100/1000 Full PoE downlink 
ports, four 1-Gigabit SFP uplink ports, 1025-W 
power supply

Catalyst 3650-24TD-L

LAN Base

Stackable 24 10/100/1000 Ethernet downlink 
ports, two 1-Gigabit SFP and two 10-Gigabit 
SFP+ uplink ports, 250-W power supply