Juniper Networks EX-QSFP-40GE-DAC-50CM Compatible 40G QSFP+ Passive Copper Cable, 0.5m (2ft)
This page gives procurement and network teams a precise reference for Juniper Networks EX-QSFP-40GE-DAC-50CM: a 40G DAC assembly in a fixed 0.5m (2ft) configuration. The QSFP+ to QSFP+ interface, HT ordering identity and verified specifications are presented together so the required cable can be matched to the bill of materials without confusing it with another length.
OEM Part Number: EX-QSFP-40GE-DAC-50CMHT Part Number: EX-QSFP-40GE-DAC-50CM
Product Highlights
- Compatible alternative to Juniper Networks EX-QSFP-40GE-DAC-50CM
- 40G connectivity at 40Gbps
- Interface configuration: QSFP+ to QSFP+
- Fixed length and part number: 0.5m (2ft), EX-QSFP-40GE-DAC-50CM
- Conductor specification: 30AWG
- Minimum bend radius: 35mm
Specifications
| HT Part Number | EX-QSFP-40GE-DAC-50CM |
|---|---|
| Juniper Networks Compatible | EX-QSFP-40GE-DAC-50CM |
| Manufacturer | HT |
| Connector Type | QSFP+ to QSFP+ |
| Max Data Rate | 40Gbps |
| Minimum Bend Radius | 35mm |
| Wire AWG | 30AWG |
| Cable Length | 0.5m (1.64ft) |
| Jacket Material | PVC (OFNR) |
| Temperature | 0 to 70°C (32 to 158°F) |
| Protocols | SFF-8436, QSFP+ MSA and IEEE 802.3ba |
Juniper Deployment Reference
Juniper platform documentation distinguishes straight QSFP28 DAC or AOC connections from DACBO and AOCBO breakout operation. On channelized systems, the host port must be configured for the required breakout mode. Match this HT compatible cable to the exact Juniper part number and the intended platform configuration.
Position Within the Length Range
EX-QSFP-40GE-DAC-50CM is the shortest of 7 verified length options in this family. It is the preferred choice when the port positions are close and cable slack must be kept to a minimum. The next option is EX-QSFP-40GE-DAC-1M at 1m (3ft), adding 0.5m for a less direct routing path; selecting it unnecessarily would leave more cable to dress.
Procurement and Port-Mapping Review
A useful purchase order should identify the host platform, the expected OEM code and the exact cable length as separate pieces of information. This prevents a physically similar assembly from being substituted when the port identification or reach is different. For mixed-length installations, prepare one order line per part number and reconcile each delivered cable with its intended pair of ports. For this assembly, the listed conductor specification is 30AWG; the minimum bend radius is 35mm; the jacket material is PVC (OFNR).
Cable Construction and Routing
This assembly uses 30AWG conductors, PVC (OFNR) jacket, minimum bend radius 35mm. These mechanical characteristics affect how the cable should be dressed behind the equipment. Avoid sharp edges, excessive ties and repeated tight bends close to the connector boots.
Network and Protocol Considerations
The intended application is determined by the host interface and protocol support. Listed interface and protocol references include SFF-8436, QSFP+ MSA and IEEE 802.3ba. Confirm that the host firmware and port configuration support the same operating mode.
Passive Copper Operation
A passive DAC has no separate optical conversion stage. Its low-power, low-latency operation is useful for short equipment links, but the assembly must remain within the length and signaling mode accepted by both hosts.
Length Selection and Installation Planning
The 0.5m (2ft) length is suited to closely aligned ports where excessive slack would obstruct airflow or complicate dressing. Measure the actual port-to-port path before choosing EX-QSFP-40GE-DAC-50CM; even a short assembly must retain the specified bend radius and should never be pulled tight behind the equipment.
Juniper Networks Compatibility and Factory Testing
Our procurement-oriented compatibility check begins with the OEM reference and ends with a live host link. We record the physical length separately from the identification configuration, so the cable supplied for this page remains the stated version rather than a generic length substitute. Both connectors are examined before the operating test, which includes link stability and diagnostic indications.
Ordering Information
For a clear bill of materials, quote the OEM reference, HT part number, length and quantity on the same line. Add the switch or server model and software release when a pre-order review is required; project labels can repeat those details for receiving and installation teams. Keep EX-QSFP-40GE-DAC-50CM associated with 0.5m (2ft) throughout the order and receiving record.
Quality Assurance and Packaging
Before packing, the assembly is checked for connector condition, identification and link operation. Cables for multi-line orders can be labelled and grouped by part number, making it easier to match each length to the procurement record without opening every protective bag. Neutral packaging and customer-specific packing documentation are available on request.
Frequently Asked Questions
Is this an original Juniper Networks cable?
No. It is an HT-manufactured compatible alternative for equipment that specifies Juniper Networks EX-QSFP-40GE-DAC-50CM.
How should an unused assembly be stored?
Protect both connector ends, keep the cable in a loose bend-safe coil and retain its part-number label so the length and compatibility identity remain traceable.
Can different brands be connected with the same assembly?
Only where both hosts explicitly support the complete interface and compatibility arrangement. Document each end and select the appropriate brand-specific product when required.
Does this order code cover multiple lengths?
No. EX-QSFP-40GE-DAC-50CM refers here to 0.5m (2ft). Every other verified length has a separate part number and page in the length list.
Shipping and Lead Time
Available stock is generally dispatched within one to three working days after order confirmation, with production lead times advised for larger quantities. Worldwide courier services are available, with air or sea freight for consolidated shipments; freight-collect delivery and coordination with a customer’s logistics provider can be arranged.