8
QSFP+
transceiver
module
Cable/fiber
diameter
(µm)
Modal
bandwidth
(MHz ×
km)
Max
transmission
distance
QSFP-40G-
CSR4-MM8
50
Multi-mode,
50/125
2000
300 m (984.25 ft)
4700
400 m (1312.33
ft)
QSFP-40G-
LR4-WDM1
300
Single-mode,
9/125
N/A
10 km (6.21
miles)
QSFP-40G-
LR4L-WDM
1300
Single-mode,
9/125
N/A
2 km (1.24 miles)
Table 9 QSFP+ DAC cables available for the QSFP+ ports
QSFP+ DAC cable
Cable length
Data rate
LSWM1QSTK0
1 m (3.28 ft)
40 Gbps
LSWM1QSTK1
3 m (9.84 ft)
LSWM1QSTK2
5 m (16.40 ft)