JNP-100G-DAC-3M: Juniper 100GbE QSFP28 Direct Attach Copper Cable 3m
Also listed as: 740-058737, JNP-100G-DAC-3M=
The Juniper JNP-100G-DAC-3M is a 3-meter passive QSFP28 direct attach copper cable providing 100 Gigabit Ethernet connectivity within and between adjacent server racks.
Specifications
| Part number | JNP-100G-DAC-3M |
|---|---|
| Brand | Juniper |
| Type | Cables |
| Other numbers | 740-058737, JNP-100G-DAC-3M= |
| Status | current |
| Form factor | QSFP28 |
| Speed | 100GbE |
| Connector | QSFP28 to QSFP28 |
| Cable type | Twinaxial passive copper |
| Max distance m | 3 |
About the JNP-100G-DAC-3M
The Juniper JNP-100G-DAC-3M direct attach copper cable assembly provides high density 100 Gigabit Ethernet connectivity for cloud data centers and high throughput compute clusters. Containing eight high speed twinaxial wire pairs supporting four 25Gbps full duplex transmission lanes, it offers an economical low latency solution for short-reach inter-switch links.
Compatibility
Compatible with Juniper QFX5120, QFX5200, QFX5210, QFX5220 switches, and MX Series routers equipped with QSFP28 ports. It links spine switches to top-of-rack leaf switches and bridges high performance compute nodes without the added power and cost of optical modules.
How to identify a genuine unit
Constructed with a heavy gauge black twinaxial cable jacket and durable metal QSFP28 connector housings. Both connector ends feature an integrated pull tab release latch and an adhesive identification label displaying Juniper part number 740-058737 and serial number.
Buying used
Inspect the cable outer insulation for pinch points or sharp bends that could impair differential pair signal integrity. Verify that connector latching springs engage securely into switch cages and check that Junos OS establishes link state immediately without reporting bit errors.
Fits these models
- Juniper QFX Series QFX10002-36Q
- Juniper QFX Series QFX10002-60C
- Juniper QFX Series QFX10002-72Q
- Juniper QFX Series QFX10008
- Juniper QFX Series QFX10016
- Juniper QFX Series QFX5120-32C
- Juniper QFX Series QFX5120-48T
- Juniper QFX Series QFX5120-48Y
- Juniper QFX Series QFX5130-32CD
- Juniper QFX Series QFX5200-32C
- Juniper QFX Series QFX5200-64Q
- Juniper QFX Series QFX5210-64C
- Juniper QFX Series QFX5220-128C
- Juniper QFX Series QFX5220-32CD
- Juniper QFX Series QFX5700
Check compatibility with Juniper
Before you buy, confirm the exact configuration against the vendor's own lists: firmware levels, operating systems, adapters and optics that Juniper has tested with the Juniper JNP-100G-DAC-3M.
- Compatibility Juniper Hardware Compatibility Tool (optics and modules)
- Specifications Juniper TechLibrary
- Support Juniper Support
FAQ
What is the physical length of the JNP-100G-DAC-3M cable?
It is exactly 3 meters in total length.
Does this cable support 100Gbps line rate?
Yes, it supports four differential copper channels operating at 25Gbps each for 100Gbps aggregate rate.
Buying or selling JNP-100G-DAC-3M?
New, refurbished or used. Tell us the quantity and condition and we connect you with a vetted reseller in your region, usually within one working day.
Sources
- Juniper Hardware Compatibility Tool JNP-100G-DAC-3M, checked 2026-10-27