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.
Passive Copper
| Connector | Standard | Data Rate | Gauge | Length | Notes |
|---|---|---|---|---|---|
| QSFP+ | IEEE802.3ba, 40GBASE-CR4 style 1 | 4x10G | 24 | 6 | |
| QSFP+ | IEEE802.3ba, 40GBASE-CR4 style 1 | 4x10G | 26 | 5 | |
| QSFP+ | IEEE802.3ba, 40GBASE-CR4 style 1 | 4x10G | 28 | 4 | |
| QSFP+ | IEEE802.3ba, 40GBASE-CR4 style 1 | 4x10G | 30 | 3 | |
| QSFP+ | InfiniBand QDR | 4x10G | 24 | 7 | |
| QSFP+ | InfiniBand QDR | 4x10G | 26 | 6 | |
| QSFP+ | InfiniBand QDR | 4x10G | 28 | 5 | |
| QSFP+ | InfiniBand QDR | 4x10G | 30 | 4 | |
| QSFP+ | InfiniBand QDR | 4x10G | 32 | 2 | |
| QSFP+ | SAS trained | 4x1.5, 3 & 6G | 24 | 10 | |
| QSFP+ | SAS trained | 4x1.5, 3 & 6G | 26 | 8 | |
| QSFP+ | SAS trained | 4x1.5, 3 & 6G | 28 | 7 | |
| QSFP+ | SAS trained | 4x1.5, 3 & 6G | 30 | 6 | |
| QSFP+ | SAS untrained | 4x1.5 & 3G | 24 | 6 | |
| QSFP+ | SAS untrained | 4x1.5 & 3G | 26 | 5 | |
| QSFP+ | SAS untrained | 4x1.5 & 3G | 28 | 4 | |
| QSFP+ | SAS untrained | 4x1.5 & 3G | 30 | 3 | |
| SFF8470 | IEEE802.3ak, 10GBASE-CX4 | 4x3.125G | 24 | 17 | |
| SFF8470 | IEEE802.3ak, 10GBASE-CX4 | 4x3.125G | 26 | 13 | |
| SFF8470 | IEEE802.3ak, 10GBASE-CX4 | 4x3.125G | 28 | 11 | |
| SFF8470 | IEEE802.3ak, 10GBASE-CX4 | 4x3.125G | 30 | 9 | |
| SFF8470 | IEEE802.3ba, 40GBASE-CR4 style 2 | 4x10G | 24 | 6 | |
| SFF8470 | IEEE802.3ba, 40GBASE-CR4 style 2 | 4x10G | 26 | 5 | |
| SFF8470 | IEEE802.3ba, 40GBASE-CR4 style 2 | 4x10G | 28 | 4 | |
| SFF8470 | IEEE802.3ba, 40GBASE-CR4 style 2 | 4x10G | 30 | 3 | |
| SFF8470 | InfiniBand SDR | 4x2.5G | 24 | 21 | |
| SFF8470 | InfiniBand DDR | 4x5G | 24 | 8.5 | |
| SFF8470 | InfiniBand QDR | 4x10G | 24 | 6 | note 1 |
| SFF8470 | InfiniBand SDR | 4x2.5G | 26 | 16 | |
| SFF8470 | InfiniBand DDR | 4x5G | 26 | 7 | |
| SFF8470 | InfiniBand QDR | 4x10G | 26 | 5 | note 1 |
| SFF8470 | InfiniBand SDR | 4x2.5G | 28 | 13 | |
| SFF8470 | InfiniBand DDR | 4x5G | 28 | 5 | |
| SFF8470 | InfiniBand QDR | 4x10G | 28 | 4 | note 1 |
| SFF8470 | InfiniBand SDR | 4x2.5G | 30 | 10 | |
| SFF8470 | InfiniBand DDR | 4x5G | 30 | 4.5 | |
| SFF8470 | InfiniBand QDR | 4x10G | 30 | 3 | note 1 |
| SFF8470 | SAS untrained | 4x3G | 24 | 6 | |
| SFF8470 | SAS untrained | 4x3G | 26 | 5 | |
| SFF8470 | SAS untrained | 4x3G | 28 | 4 | |
| SFF8470 | SAS untrained | 4x3G | 30 | 3 | |
| SFP+ | Ethernet (10GbE) | 1x10G | 24 | 8 | |
| SFP+ | Ethernet (10GbE) | 1x10G | 26 | 7 | |
| SFP+ | Ethernet (10GbE) | 1x10G | 28 | 6 | |
| SFP+ | Ethernet (10GbE) | 1x10G | 30 | 4 | |
| SFP+ | Ethernet (10GbE) | 1x10G | 32 | 3 | |
| SFP+ | InfiniBand QDR | 1x10G | 24 | 7 | note 2 |
| SFP+ | InfiniBand QDR | 1x10G | 26 | 6 | note 2 |
| SFP+ | InfiniBand QDR | 1x10G | 28 | 5 | note 2 |
| SFP+ | InfiniBand QDR | 1x10G | 30 | 4 | note 2 |
Active Optical
| Connector | Standard | Data Rate | Gauge | Length | Notes |
|---|---|---|---|---|---|
| QSFP+ | InfiniBand QDR | 4x10G | n/a | 300** | single 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 transmitters and receivers that are being used.
note 1: assumes QDR spec will be revised to -14dB at 5GHz (current published spec is -17dB at 5GHz).
note 2: SFP+ is not on InfiniBand Integrators List.
**4km possible, not on InfiniBand Integrators List.