Maximum Cable
Distance
Modal
Bandwidth
(MHz-km)
Core Size
(microns)
Wavelength
(nm)
Connector Type
Cable
Type
Transceiver
98 feet (30 m)
328 feet (100 m)
328 feet (100 m)
500
2000
4700
50.0
50.0
50.0
850
QSFP+ to QSFP+
MMF
FET-40G
FET-40G is not
supported with
N77-M324FQ-25L
and
N77-M312CQ-26L.
Note
23 feet (7 m)
33 feet (10 m)
—
—
—
QSFP+ to QSFP+
Direct
attach
copper,
active
QSFP-H40G-ACU
x
M
3.3 feet (1 m)
6.6 feet (2 m)
9.8 feet (3 m)
16.4 feet (5 m)
23 feet (7 m)
33 feet (10 m)
49.4 feet (15 m)
—
—
—
QSFP+ to QSFP+
Active
optical
cable
QSFP-H40G-AOC
x
M
108 feet (33 m)
269 feet (82 m)
984 feet (300 m)
1312 feet (400 m)
200
500
2000
4700
62.5
50.0
50.0
50.0
850
12-fiber
MTP/MPO
MMF
QSFP-40G-CSR4
40 km
4
—
G.652
1310
LC
SMF
QSFP-40G-ER4
6.21 miles (10 km)
—
G.652
1310
LC Duplex
SMF
QSFP-40G-LR4
98 feet (30 m)
328 feet (100 m)
492 feet (150 m)
500 (OM2)
2000 (OM3)
4700 (OM4)
50.0
50.0
50.0
850
PC or UPC
MMF
QSFP-40G-SR4
98 feet (30 m)
328 feet (100 m)
328 feet (100 m)
500 (OM2)
2000 (OM3)
4700 (OM4)
50.0
50.0
50.0
850/900
LC Duplex
MMF
QSFP-40G-SR-BD
1.24 miles (2 km)
—
G.652
1310
LC
SMF
WSP-Q40G-LR4L
For the optical specifications, see the following table.
Cisco Nexus 7718 Switch Site Preparation and Hardware Installation Guide
158
OL-30453-01
Switch Specifications
40-Gb QSFP+ Transceiver Specifications