25-Gigabit (25G) Ethernet • 40-Gigabit (40G) Ethernet Network Cables & Modules

Buy 25-Gigabit (25G) Ethernet • 40-Gigabit (40G) Ethernet Network Cables & Modules for your AI/datacenter network build-outs factory-direct from Amphenol Cables on Demand (CablesOnDemand.com). We stock dozens of popular Network Patch Cords (Ethernet Cables), Direct Attach Copper (DAC) Cable Assemblies and Optical Transceiver Modules that are specifically engineered and optimized for handling all aspects of your 25-Gigabit Ethernet (25GbE / 25G Ethernet) and 40-Gigabit Ethernet (40GbE / 40G Ethernet) network LAN and back-haul traffic links. Choose from a broad array of 25G/40G-capable interconnects, including:

For 25-Gigabit (25G) Ethernet specifically, we feature SFP28 25G Direct Attach Copper (DAC) Cables for short 25GBASE-CR (25G Ethernet over Twin-Ax Copper) back-haul links, SFP28 25G Loopback Adapter Modules for SFP28 port testing applications and finally, for extended 25G link lengths, we offer 25GBASE-SR SFP28 Optical Transceiver Modules (SR = Short-Run up to 100m/330ft) and 25GBASE-LR SFP28 Optical Transceiver Modules (LR = Long-Run up to 10km). Our dual-mode Category-8 (CAT-8) Network Patch Cords (CAT8 Ethernet Cables) support BOTH 25GBASE-T and 40GBASE-T (25G & 40G Ethernet over Twisted Pair) links up to 30-meters (98-feet).

Moving up to 40-Gigabit (40G) Ethernet, we stock a multitude of copper-based interconnect options for your 40G-capable backhaul links, including 40GBASE-CR (40-Gigabit Ethernet over Twin-Ax Copper) capable QSFP+ (QSFP Plus), available in several form-factors. Choose from QSFP+ 40G Direct Attach Copper (DAC) Cables for your 40G Ethernet switch/server backbone links up to 7-meters (23-feet), QSFP+ 40G to 4 x SFP+ 10G Direct Attach Copper (DAC) Splitter Cables, optimal for bridging 10G and 40G Ethernet capable switch links. Finally, for testing the 40G-capable QSFP+ ports on your switches/servers/adapters, we offer a variety of 40G QSFP+ Loopback Adapter Modules.

Amphenol MP-CAT8STPBLK-001 Shielded Twisted Pair Category-8 Ethernet Cable (CAT8 STP) Network Patch Cord --25 / 40-Gigabit Ethernet Certified Cable + Shielded RJ45 Connectors - Black 1ft
Code: MP-CAT8STPBLK-001
Buy 1ft Amphenol MP-CAT8STPBLK-001 CAT-8 Ethernet Cables Direct from the Factory at Cables on Demand. Amphenol Black Category-8 (CAT8) STP Shielded Network Patch Cords offer "future-proof" network performance; optimally designed for either 25-Gigabits-per-second or 40-Gigabits-per-second speeds at link distances up to 30-meters (~100-feet). We’ve combined …
Qty avail.: 114
Availability: In stock

1-50	$4.85
51+	$4.61

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Amphenol MP-CAT8STPBLK-003 Shielded Twisted Pair Category-8 Ethernet Cable (CAT8 STP) Network Patch Cord --25 / 40-Gigabit Ethernet Certified Cable + Shielded RJ45 Connectors - Black 3ft
Code: MP-CAT8STPBLK-003
Buy 3ft Amphenol MP-CAT8STPBLK-003 CAT-8 Ethernet Cables Direct from the Factory at Cables on Demand. Amphenol Black Category-8 (CAT8) STP Shielded Network Patch Cords offer "future-proof" network performance; optimally designed for either 25-Gigabits-per-second or 40-Gigabits-per-second speeds at link distances up to 30-meters (~100-feet). We’ve combined …
Qty avail.: 54
Availability: In stock

1-50	$6.18
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Amphenol MP-CAT8STPBLK-005 Shielded Twisted Pair Category-8 Ethernet Cable (CAT8 STP) Network Patch Cord --25 / 40-Gigabit Ethernet Certified Cable + Shielded RJ45 Connectors - Black 5ft
Code: MP-CAT8STPBLK-005
Buy 5ft Amphenol MP-CAT8STPBLK-005 CAT-8 Ethernet Cables Direct from the Factory at Cables on Demand. Amphenol Black Category-8 (CAT8) STP Shielded Network Patch Cords offer "future-proof" network performance; optimally designed for either 25-Gigabits-per-second or 40-Gigabits-per-second speeds at link distances up to 30-meters (~100-feet). We’ve combined …
Qty avail.: 4
Availability: In stock

1-50	$7.51
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Amphenol MP-CAT8STPBLK-007 Shielded Twisted Pair Category-8 Ethernet Cable (CAT8 STP) Network Patch Cord --25 / 40-Gigabit Ethernet Certified Cable + Shielded RJ45 Connectors - Black 7ft
Code: MP-CAT8STPBLK-007
Buy 7ft Amphenol MP-CAT8STPBLK-007 CAT-8 Ethernet Cables Direct from the Factory at Cables on Demand. Amphenol Black Category-8 (CAT8) STP Shielded Network Patch Cords offer "future-proof" network performance; optimally designed for either 25-Gigabits-per-second or 40-Gigabits-per-second speeds at link distances up to 30-meters (~100-feet). We’ve combined …
Qty avail.: 83
Availability: In stock

1-50	$8.84
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Amphenol MP-CAT8STPBLK-010 Shielded Twisted Pair Category-8 Ethernet Cable (CAT8 STP) Network Patch Cord --25 / 40-Gigabit Ethernet Certified Cable + Shielded RJ45 Connectors - Black 10ft
Code: MP-CAT8STPBLK-010
Buy 10ft Amphenol MP-CAT8STPBLK-010 CAT-8 Ethernet Cables Direct from the Factory at Cables on Demand. Amphenol Black Category-8 (CAT8) STP Shielded Network Patch Cords offer "future-proof" network performance; optimally designed for either 25-Gigabits-per-second or 40-Gigabits-per-second speeds at link distances up to 30-meters (~100-feet). We’ve combined …
Qty avail.: 98
Availability: In stock

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Amphenol MP-CAT8STPBLK-014 Shielded Twisted Pair Category-8 Ethernet Cable (CAT8 STP) Network Patch Cord --25 / 40-Gigabit Ethernet Certified Cable + Shielded RJ45 Connectors - Black 14ft
Code: MP-CAT8STPBLK-014
Buy 14ft Amphenol MP-CAT8STPBLK-014 CAT-8 Ethernet Cables Direct from the Factory at Cables on Demand. Amphenol Black Category-8 (CAT8) STP Shielded Network Patch Cords offer "future-proof" network performance; optimally designed for either 25-Gigabits-per-second or 40-Gigabits-per-second speeds at link distances up to 30-meters (~100-feet). We’ve combined …
Qty avail.: 106
Availability: In stock

1-50	$13.63
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Amphenol MP-CAT8STPBLK-020 Shielded Twisted Pair Category-8 Ethernet Cable (CAT8 STP) Network Patch Cord --25 / 40-Gigabit Ethernet Certified Cable + Shielded RJ45 Connectors - Black 20ft
Code: MP-CAT8STPBLK-020
Buy 20ft Amphenol MP-CAT8STPBLK-020 CAT-8 Ethernet Cables Direct from the Factory at Cables on Demand. Amphenol Black Category-8 (CAT8) STP Shielded Network Patch Cords offer "future-proof" network performance; optimally designed for either 25-Gigabits-per-second or 40-Gigabits-per-second speeds at link distances up to 30-meters (~100-feet). We’ve combined …
Qty avail.: 72
Availability: In stock

1-50	$17.76
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Amphenol MP-CAT8STPBLK-025 Shielded Twisted Pair Category-8 Ethernet Cable (CAT8 STP) Network Patch Cord --25 / 40-Gigabit Ethernet Certified Cable + Shielded RJ45 Connectors - Black 25ft
Code: MP-CAT8STPBLK-025
Buy 25ft Amphenol MP-CAT8STPBLK-025 CAT-8 Ethernet Cables Direct from the Factory at Cables on Demand. Amphenol Black Category-8 (CAT8) STP Shielded Network Patch Cords offer "future-proof" network performance; optimally designed for either 25-Gigabits-per-second or 40-Gigabits-per-second speeds at link distances up to 30-meters (~100-feet). We’ve combined …
Qty avail.: 119
Availability: In stock

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Amphenol MP-CAT8STPBLK-030 Shielded Twisted Pair Category-8 Ethernet Cable (CAT8 STP) Network Patch Cord --25 / 40-Gigabit Ethernet Certified Cable + Shielded RJ45 Connectors - Black 30ft
Code: MP-CAT8STPBLK-030
Buy 30ft Amphenol MP-CAT8STPBLK-030 CAT-8 Ethernet Cables Direct from the Factory at Cables on Demand. Amphenol Black Category-8 (CAT8) STP Shielded Network Patch Cords offer "future-proof" network performance; optimally designed for either 25-Gigabits-per-second or 40-Gigabits-per-second speeds at link distances up to 30-meters (~100-feet). We’ve combined …
Qty avail.: 68
Availability: In stock

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Amphenol MP-CAT8STPBLK-040 Shielded Twisted Pair Category-8 Ethernet Cable (CAT8 STP) Network Patch Cord --25 / 40-Gigabit Ethernet Certified Cable + Shielded RJ45 Connectors - Black 40ft
Code: MP-CAT8STPBLK-040
Buy 40ft Amphenol MP-CAT8STPBLK-040 CAT-8 Ethernet Cables Direct from the Factory at Cables on Demand. Amphenol Black Category-8 (CAT8) STP Shielded Network Patch Cords offer "future-proof" network performance; optimally designed for either 25-Gigabits-per-second or 40-Gigabits-per-second speeds at link distances up to 30-meters (~100-feet). We’ve combined …
Qty avail.: 112
Availability: In stock

1-50	$32.59
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Amphenol MP-CAT8STPBLK-050 Shielded Twisted Pair Category-8 Ethernet Cable (CAT8 STP) Network Patch Cord --25 / 40-Gigabit Ethernet Certified Cable + Shielded RJ45 Connectors - Black 50ft
Code: MP-CAT8STPBLK-050
Buy 50ft Amphenol MP-CAT8STPBLK-050 CAT-8 Ethernet Cables Direct from the Factory at Cables on Demand. Amphenol Black Category-8 (CAT8) STP Shielded Network Patch Cords offer "future-proof" network performance; optimally designed for either 25-Gigabits-per-second or 40-Gigabits-per-second speeds at link distances up to 30-meters (~100-feet). We’ve combined …
Qty avail.: 101
Availability: In stock

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Amphenol MP-CAT8STPBLK-065 Shielded Twisted Pair Category-8 Ethernet Cable (CAT8 STP) Network Patch Cord --25 / 40-Gigabit Ethernet Certified Cable + Shielded RJ45 Connectors - Black 65ft
Code: MP-CAT8STPBLK-065
Buy 65ft Amphenol MP-CAT8STPBLK-065 CAT-8 Ethernet Cables Direct from the Factory at Cables on Demand. Amphenol Black Category-8 (CAT8) STP Shielded Network Patch Cords offer "future-proof" network performance; optimally designed for either 25-Gigabits-per-second or 40-Gigabits-per-second speeds at link distances up to 30-meters (~100-feet). We’ve combined …
Qty avail.: 99
Availability: In stock

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Amphenol SF-NDCCGF28GB-000.5M 0.5m SFP28 Cable - Amphenol 25-Gigabit Ethernet SFP28 Direct Attach Copper Cable (1.6 ft)
(Based on 1 vote(s))
Code: SF-NDCCGF28GB-000.5M
Amphenol 0.5m (1.6 ft) 25G/28G SFP28 Direct Attach Copper Cables provide affordable 25-Gigabit Ethernet connectivity in a low-profile package. Each SFP28 cable utilizes an upgraded 20-position “board-as-connector” design with zinc die-cast backshells for superior EMI performance and minimal insertion loss. Our 0.5m SFP28 cables are assembled with industry-leading …
Qty avail.: 21
Availability: In stock

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Amphenol SF-NDCCGF28GB-001.5M 1.5m SFP28 Cable - Amphenol 25-Gigabit Ethernet SFP28 Direct Attach Copper Cable (4.9 ft)
(Based on 1 vote(s))
Code: SF-NDCCGF28GB-001.5M
Amphenol 1.5m (4.9 ft) 25G/28G SFP28 Direct Attach Copper Cables provide affordable 25-Gigabit Ethernet connectivity in a low-profile package. Each SFP28 cable utilizes an upgraded 20-position “board-as-connector” design with zinc die-cast backshells for superior EMI performance and minimal insertion loss. Our 1.5m SFP28 cables are assembled with industry-leading …
Qty avail.: 91
Availability: In stock

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Amphenol SF-NDCCGF28GB-001M 1m SFP28 Cable - Amphenol 25-Gigabit Ethernet SFP28 Direct Attach Copper Cable (3.3 ft)
Code: SF-NDCCGF28GB-001M
Amphenol 1m (3.3 ft) 25G/28G SFP28 Direct Attach Copper Cables provide affordable 25-Gigabit Ethernet connectivity in a low-profile package. Each SFP28 cable utilizes an upgraded 20-position “board-as-connector” design with zinc die-cast backshells for superior EMI performance and minimal insertion loss. Our 0.5m SFP28 cables are assembled with industry-leading …
Qty avail.: 75
Availability: In stock

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Amphenol SF-NDCCGF28GB-002.5M 2.5m SFP28 Cable - Amphenol 25-Gigabit Ethernet SFP28 Direct Attach Copper Cable (8.2 ft)
Code: SF-NDCCGF28GB-002.5M
Amphenol 2.5m (8.2 ft) 25G/28G SFP28 Direct Attach Copper Cables provide affordable 25-Gigabit Ethernet connectivity in a low-profile package. Each SFP28 cable utilizes an upgraded 20-position “board-as-connector” design with zinc die-cast backshells for superior EMI performance and minimal insertion loss. Our 0.5m SFP28 cables are assembled with industry-leading …
Qty avail.: 36
Availability: In stock

1-50	$59.09
51+	$56.14

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Amphenol SF-NDCCGF28GB-002M 2m SFP28 Cable - Amphenol 25-Gigabit Ethernet SFP28 Direct Attach Copper Cable (6.6 ft)
(Based on 11 vote(s))
Code: SF-NDCCGF28GB-002M
Amphenol 2m (6.6 ft) 25G/28G SFP28 Direct Attach Copper Cables provide affordable 25-Gigabit Ethernet connectivity in a low-profile package. Each SFP28 cable utilizes an upgraded 20-position “board-as-connector” design with zinc die-cast backshells for superior EMI performance and minimal insertion loss. Our 0.5m SFP28 cables are assembled with industry-leading …
Qty avail.: 73
Availability: In stock

1-50	$55.00
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Amphenol SF-NDCCGF28GB-003M 3m SFP28 Cable - Amphenol 25-Gigabit Ethernet SFP28 Direct Attach Copper Cable (9.8 ft)
Code: SF-NDCCGF28GB-003M
Amphenol 3m (9.8 ft) 25G/28G SFP28 Direct Attach Copper Cables provide affordable 25-Gigabit Ethernet connectivity in a low-profile package. Each SFP28 cable utilizes an upgraded 20-position “board-as-connector” design with zinc die-cast backshells for superior EMI performance and minimal insertion loss. Our 0.5m SFP28 cables are assembled with industry-leading …
Qty avail.: 117
Availability: In stock

1-50	$65.51
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Amphenol SF-NDCCGJ28GB-002M 2m SFP28 Cable - Amphenol 25-Gigabit Ethernet SFP28 Direct Attach Copper Cable (6.6 ft) - 26 AWG (Low-Loss Version)
Code: SF-NDCCGJ28GB-002M
Amphenol 2m (6.6 ft) 25G/28G SFP28 Direct Attach Copper Cables provide affordable 25-Gigabit Ethernet connectivity in a low-profile package. Each SFP28 cable utilizes an upgraded 20-position “board-as-connector” design with zinc die-cast backshells for superior EMI performance and minimal insertion loss. Our 2m SFP28 cables are assembled with industry-leading …
Qty avail.: 145
Availability: In stock

1-50	$95.91
51+	$91.11

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Amphenol SF-NDCCGJ28GB-003M 3m SFP28 Cable - Amphenol 25-Gigabit Ethernet SFP28 Direct Attach Copper Cable (9.8 ft) - 26 AWG (Low-Loss Version)
(Based on 10 vote(s))
Code: SF-NDCCGJ28GB-003M
Amphenol 3m (9.8 ft) 25G/28G SFP28 Direct Attach Copper Cables provide affordable 25-Gigabit Ethernet connectivity in a low-profile package. Each SFP28 cable utilizes an upgraded 20-position “board-as-connector” design with zinc die-cast backshells for superior EMI performance and minimal insertion loss. Our 3m SFP28 cables are assembled with industry-leading …
Qty avail.: 197
Availability: In stock

1-50	$112.97
51+	$107.32

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Amphenol SF-NDCCGJ28GB-005M 5m SFP28 Cable - Amphenol 25-Gigabit Ethernet SFP28 Direct Attach Copper Cable (16.4 ft) - 26 AWG
(Based on 1 vote(s))
Code: SF-NDCCGJ28GB-005M
Amphenol 5m (16.4 ft) 25G/28G SFP28 Direct Attach Copper Cables provide affordable 25-Gigabit Ethernet connectivity in a low-profile package. Each SFP28 cable utilizes an upgraded 20-position “board-as-connector” design with zinc die-cast backshells for superior EMI performance and minimal insertion loss. Our 5m SFP28 cables are assembled with industry-leading …
Qty avail.: 39
Availability: In stock

1-50	$139.31
51+	$132.34

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Amphenol SF-QSFP4SFPPS-001 1m QSFP to 4 SFP+ Splitter Cable (30 AWG Passive Copper) - 1 x QSFP+ (40GbE) to 4 x SFP+ (10GbE) Connectors (3.3 ft)
(Based on 1 vote(s))
Code: SF-QSFP4SFPPS-001
Amphenol’s revolutionary 1m (3.3 ft) QSFP to 4 SFP+ Splitter Cable offers IT professionals a cost-effective interconnect solution for merging 40GbE QSFP+ and 10GbE SFP+ enabled host adapters, switches and servers. For typical applications, users can install this splitter cable (a.k.a. “octopus” cable) between an available QSFP/QSFP+ port …
Qty avail.: 13
Availability: In stock

1-50	$160.41
51+	$152.39

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Amphenol SF-QSFP4SFPPS-002 2m QSFP to 4 SFP+ Splitter Cable (30 AWG Passive Copper) - 1 x QSFP+ (40GbE) to 4 x SFP+ (10GbE) Connectors (6.6 ft)
Code: SF-QSFP4SFPPS-002
Amphenol’s revolutionary 2m (6.6 ft) QSFP to 4 SFP+ Splitter Cable offers IT professionals a cost-effective interconnect solution for merging 40GbE QSFP+ and 10GbE SFP+ enabled host adapters, switches and servers. For typical applications, users can install this splitter cable (a.k.a. “octopus” cable) between an available QSFP/QSFP+ port …
Qty avail.: 6
Availability: In stock

1-50	$184.22
51+	$175.01

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Amphenol SF-QSFP4SFPPS-003 3m QSFP to 4 SFP+ Splitter Cable (30 AWG Passive Copper) - 1 x QSFP+ (40G) to 4 x SFP+ (10G) Connectors (9.8 ft)
(Based on 1 vote(s))
Code: SF-QSFP4SFPPS-003
Amphenol’s revolutionary 3m (9.8 ft) QSFP to 4 SFP+ Splitter Cable offers IT professionals a cost-effective interconnect solution for merging 40GbE QSFP+ and 10GbE SFP+ enabled host adapters, switches and servers. For typical applications, users can install this splitter cable (a.k.a. “octopus” cable) between an available QSFP/QSFP+ port …
Qty avail.: 31
Availability: In stock