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Cable Assembly Length/Gauge/Data Rate Chart

Siemon Labs provides a technical resource guide to map High Speed Interconnect cable assemblies to industry specified standards and data rates. Included is the High Speed Interconnect wire gauge or fiber type and the expected reach based on common transmitters and receivers. Contact Siemon for signal integrity expertise or application specific information.

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Passive Copper

Connector Standard Data Rate Gauge Length Notes
CXP IEEE802.3ba, 100GBASE-CR10 10x10G 28 3 na
CXP IEEE802.3ba, 100GBASE-CR10 10x10G 30 2 na
CXP InfiniBand DDR 12x5G 27 7 na
CXP InfiniBand DDR 12x5G 28 6 na
CXP InfiniBand DDR 12x5G 30 4 na
CXP InfiniBand QDR 12x10G 28 3 na
CXP InfiniBand QDR 12x10G 30 2 na
QSFP+ IEEE802.3ba, 40GBASE-CR4 style 1 4x10G 26 5 na
QSFP+ IEEE802.3ba, 40GBASE-CR4 style 1 4x10G 28 4 na
QSFP+ IEEE802.3ba, 40GBASE-CR4 style 1 4x10G 30 3 na
QSFP+ InfiniBand DDR 4x5G 24 10 na
QSFP+ InfiniBand DDR 4x5G 26 8 na
QSFP+ InfiniBand DDR 4x5G 28 7 na
QSFP+ InfiniBand DDR 4x5G 30 5 na
QSFP+ InfiniBand QDR 4x10G 25 6 na
QSFP+ InfiniBand QDR 4x10G 26 5 na
QSFP+ InfiniBand QDR 4x10G 28 4 na
QSFP+ InfiniBand QDR 4x10G 30 3 na
QSFP+ InfiniBand FDR 4x14G 25 4 na
QSFP+ InfiniBand FDR 4x14G 26 3 na
QSFP+ InfiniBand FDR 4x14G 28 3 na
QSFP+ InfiniBand FDR 4x14G 30 2 na
SFP+ Ethernet (10GbE) 1x10G 24 7 na
SFP+ Ethernet (10GbE) 1x10G 28 5 na
SFP+ Ethernet (10GbE) 1x10G 30 3 na
SFP+ InfiniBand QDR 1x10G 24 6 note 1
SFP+ InfiniBand QDR 1x10G 26 5 note 1
SFP+ InfiniBand QDR 1x10G 28 4 note 1
SFP+ InfiniBand QDR 1x10G 30 3 note 1
SFP28 IEEE802.3by, 25GBASE-CR-S 1x25G 26 5 note 2
SFP28 IEEE802.3by, 25GBASE-CR-S 1x25G 26 2.5 note 3
SFP28 IEEE802.3by, 25GBASE-CR-S 1x25G 28 2 note 3
SFP28 IEEE802.3by, 25GBASE-CR-S 1x25G 30 2.5 note 2
SFP28 IEEE802.3by, 25GBASE-CR-S 1x25G 30 1.5 note 3
QSFP28 IEEE802.3bj, 25GBASE-CR4 4x25G 26 5 n/a
QSFP28 IEEE802.3bj, 25GBASE-CR4 4x25G 30 2.5 n/a
QSFP28 IEEE802.3by, 25GBASE-CR-S 4x25G 26 5 note 2
QSFP28 IEEE802.3by, 25GBASE-CR-S 4x25G 26 2.5 note 3
QSFP28 IEEE802.3by, 25GBASE-CR-S 4x25G 28 2 note 3
QSFP28 IEEE802.3by, 25GBASE-CR-S 4x25G 30 2.5 note 2
QSFP28 IEEE802.3by, 25GBASE-CR-S 4x25G 30 1.5 note 3

Active Optical

Connector Standard Data Rate Gauge Length Notes
QSFP+ InfiniBand QDR 4x10G n/a 100 multi mode
QSFP+ InfiniBand FDR 4x14G n/a 100 multi mode
QSFP+ IEEE802.3ba, 40GBASE-SR4 4x10G n/a 100 multi mode
SFP28 IEEE802.3bm, 25GBASE-SR 1x25 n/a 100 multi mode
QSFP28 IEEE802.3bm, 100GBASE-SR4td 4x25 n/a 100 multi mode

Notes:

Gauge is AWG (American Wire Gauge)
Length is in meters
Lengths are approximate based on current specifications.
Lengths can change based on the signal conditioning that is being used.
note 1: SFP+ is not on InfiniBand Integrators List.
note 2: CA-25G-L per IEEE802.3by, requires RS-FEC.
note 3: CA-25G-N per IEEE802.3by, does not require FEC.

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