Model	Description	Inquiry
WS-C4900M	Base system with 8 X2 ports and 2 half slots
WS-X4904-10GE	4 port wire speed 10GE card
WS-X4908-10GE	8 port 2:1 10GbE (X2) line card for 4900M series
WS-X4908-10G-RJ45	8 port 2:1 10GbaseT line card for 4900M series
WS-X4920-GB-RJ45	20 port 10/100/1000 RJ45
4900M-PWR-CVR	Cat4900M Blank for Power Supply Slot
WS-X4992	4900M spare fan tray
4900M-BLK-CVR	Blank for port card slots
4900M-BLK-CVR	Spare blank for port card slots
4900M-X2-CVR	X2 cover on 4900M
4900M-X2-CVR	Spare X2 cover for 4900M
PWR-C49M-1000AC	4900M AC power supply, 1000 watts
PWR-C49M-1000AC/2	Redundant AC PS for 4900M
PWR-C49M-1000DC	4900M DC power supply 1000 watts
PWR-C49M-1000DC/2	Redundant DC PS for 4900M
WS-X4908-10GE	8pt 2:1 10 GE card
WS-C4900M	Base system with 8 X2 ports and 2 half slots
WS-X4920-GBRJ45	20 port 10/100/1000 RJ45
WSX4908-10GRJ45	8 port 2:1 10GbaseT line card for 4900M series
WS-C4928-10GE	Cat 4928,no PS,28x1GBase-X SFP,2x10GBase-X X2
PWR-C49M-1000AC	4900M AC power supply, 1000 watts
PWR-C49M-1000DC	4900M DC power supply 1000 watts
PWR-C49-300AC	Catalyst 4948 300-Watt AC Power Supply (Spare)
PWR-C49-300DC	Catalyst 4900 300-Watt DC Power Supply
PWR-C49-300DC	Catalyst 4900 300-Watt DC Power Supply (Spare)
PWR-C49-300DC/2	Catalyst 4900 300-Watt DC Power Supply Redundant
C4948E-BKT-KIT	C49xxE front and rear mount brackets
C4948E-BKT-REC	C49xxE front 2inch rec mounting brackets
WS-X4991	Catalyst 4948 Fan Tray (Spare)
WS-X4993-F	Cat 4948E-F spare fan tray front exhaust, Spare
WS-X4994	Catalyst 4948E power supply blank cover
GLC-T	1000BASE-T SFP
GLC-BX-D	1000BASE-BX SFP, 1490NM
GLC-BX-U	1000BASE-BX SFP, 1310NM
GLC-ZX-SM	1000BASE-ZX SFP
CWDM-SFP-1470	CWDM 1470 NM SFP Gigabit Ethernet and 1G/2G FC
CWDM-SFP-1490	CWDM 1490 NM SFP Gigabit Ethernet and 1G/2G FC
CWDM-SFP-1510	CWDM 1510 NM SFP Gigabit Ethernet and 1G/2G FC
CWDM-SFP-1530	CWDM 1530 NM SFP Gigabit Ethernet and 1G/2G FC
CWDM-SFP-1550	CWDM 1550 NM SFP Gigabit Ethernet and 1G/2G FC
CWDM-SFP-1570	CWDM 1570 NM SFP Gigabit Ethernet and 1G/2G FC
CWDM-SFP-1590	CWDM 1590 NM SFP Gigabit Ethernet and 1G/2G FC
CWDM-SFP-1610	CWDM 1610 NM SFP Gigabit Ethernet and 1G/2G FC
X2-10GB-CX4	10GBASE-CX4 X2 Module
X2-10GB-ER	10GBASE-ER X2 Module
X2-10GB-SR	10GBASE-SR X2 Module
X2-10GB-LR	10GBASE-LR X2 Module
DWDM-X2-30.33	DWDM X2 1530.33 nm X2 (100 GHz ITU grid)
DWDM-X2-31.12	DWDM X2 1531.12 nm X2 (100 GHz ITU grid)
DWDM-X2-31.90	DWDM X2 1531.90 nm X2 (100 GHz ITU grid)
DWDM-X2-32.68	DWDM X2 1532.68 nm X2 (100 GHz ITU grid)
DWDM-X2-34.25	DWDM X2 1534.25 nm X2 (100 GHz ITU grid)
DWDM-X2-35.04	DWDM X2 1535.04 nm X2 (100 GHz ITU grid)
DWDM-X2-35.82	DWDM X2 1535.82 nm X2 (100 GHz ITU grid)
DWDM-X2-36.61	DWDM X2 1536.61 nm X2 (100 GHz ITU grid)
DWDM-X2-38.19	DWDM X2 1538.19 nm X2 (100 GHz ITU grid)
DWDM-X2-38.98	DWDM X2 1538.98 nm X2 (100 GHz ITU grid)
DWDM-X2-39.77	DWDM X2 1539.77 nm X2 (100 GHz ITU grid)
DWDM-X2-40.56	DWDM X2 1540.56 nm X2 (100 GHz ITU grid)
DWDM-X2-42.14	DWDM X2 1542.14 nm X2 (100 GHz ITU grid)
DWDM-X2-42.94	DWDM X2 1542.94 nm X2 (100 GHz ITU grid)
DWDM-X2-43.73	DWDM X2 1543.73 nm X2 (100 GHz ITU grid)
DWDM-X2-44.53	DWDM X2 1544.53 nm X2 (100 GHz ITU grid)
DWDM-X2-46.12	DWDM X2 1546.12 nm X2 (100 GHz ITU grid)
DWDM-X2-46.92	DWDM X2 1546.92 nm X2 (100 GHz ITU grid)
DWDM-X2-47.72	DWDM X2 1547.72 nm X2 (100 GHz ITU grid)
DWDM-X2-48.51	DWDM X2 1548.51 nm X2 (100 GHz ITU grid)
DWDM-X2-50.12	DWDM X2 1550.12 nm X2 (100 GHz ITU grid)
DWDM-X2-50.92	DWDM X2 1550.92 nm X2 (100 GHz ITU grid)
DWDM-X2-51.72	DWDM X2 1551.72 nm X2 (100 GHz ITU grid)
DWDM-X2-52.52	DWDM X2 1552.52 nm X2 (100 GHz ITU grid)
DWDM-X2-54.13	DWDM X2 1554.13 nm X2 (100 GHz ITU grid)
DWDM-X2-54.94	DWDM X2 1554.94 nm X2 (100 GHz ITU grid)
DWDM-X2-55.75	DWDM X2 1555.75 nm X2 (100 GHz ITU grid)
DWDM-X2-56.55	DWDM X2 1556.55 nm X2 (100 GHz ITU grid)
DWDM-X2-58.17	DWDM X2 1558.17 nm X2 (100 GHz ITU grid)
DWDM-X2-58.98	DWDM X2 1558.98 nm X2 (100 GHz ITU grid)
DWDM-X2-59.79	DWDM X2 1559.79 nm X2 (100 GHz ITU grid)
DWDM-X2-60.61	DWDM X2 1560.61 nm X2 (100 GHz ITU grid)
CVR-X2-SFP10G	X2 to SFP+ Adaptor module
SFP-10G-ER	10GBASE-ER SFP Module
GLC-ZX-SM	1000BASEZX SFP