Juniper Networks QDD-800G-DAC-1.5M Compatible 800G QSFP-DD 8 x 100G PAM4 Passive Copper Twinax Cable, 1.5m (5ft)

For short, high-density connections, this DAC cable combines 800G performance with a fixed 1.5m (5ft) cable run. It corresponds to Juniper Networks QDD-800G-DAC-1.5M and uses a factory-terminated passive copper link without separate optical modules or patch cords.

OEM Part Number: QDD-800G-DAC-1.5MHT Part Number: QDD-800G-DAC-1.5M

Product Highlights

• Compatible alternative to Juniper Networks QDD-800G-DAC-1.5M
• 800G connectivity at 800Gbps
• Interface configuration: QSFP-DD to QSFP-DD
• Fixed length and part number: 1.5m (5ft), QDD-800G-DAC-1.5M
• Cable construction: Passive DAC
• Conductor specification: 28AWG
• Maximum power consumption: 0.005W Per End
• Minimum bend radius: 81mm

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.

This assembly uses 28AWG conductors, PVC (OFNR) jacket, minimum bend radius 81mm. 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.

The intended application is 800G Ethernet. Listed interface and protocol references include QSFP-DD MSA, CMIS Rev4.0, IEEE 802.3ck. Confirm that the host firmware and port configuration support the same operating mode.

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.

The additional half metre beyond a one-metre assembly gives QDD-800G-DAC-1.5M useful routing flexibility when the ports are not directly aligned. It can accommodate a different rack unit or a short service loop, but excess cable should be dressed loosely rather than folded into a tight coil.

QDD-800G-DAC-1.5M is the longest of 3 verified length options in this family. Compared with QDD-800G-DAC-1M at 1m (3ft), it provides 0.5m of additional reach for a longer vertical drop, a wider rack or an adjacent-cabinet route. Confirm that the complete path requires this length, because unused slack still needs supported, bend-safe storage.

The listed modulation format is 8x 100G-PAM4. Both host interfaces must be configured for the same aggregate rate and lane arrangement. A connector that fits mechanically does not by itself guarantee that the remote port supports this encoding or breakout mode.

The rated power consumption is 0.005W Per End. Include this load in the host-port power and thermal budget, especially in densely populated switches. Maintain front-panel clearance and do not bundle the cable so tightly that it obstructs airflow around the connectors.

For this Juniper Networks application, testing combines digital identification with actual traffic-link verification and electrical continuity, link stability and diagnostic readouts. Both ends are inspected for latch, boot and connector damage. If the project uses a specific hardware revision or a channelized port, send those details so that the intended configuration can be reviewed before shipment.

This product is ordered as QDD-800G-DAC-1.5M in 1.5m (5ft). Include the equipment model and software release if you would like a pre-order compatibility review. Other lengths use different part numbers and should not be substituted into the same order line.

Every QDD-800G-DAC-1.5M compatible assembly undergoes link testing, compatibility verification and visual inspection. The 1.5m (5ft) cable is coiled without exceeding its minimum bend radius, fitted with connector protection and packed in an anti-static bag or protective tray before cartoning. Project labels and packing lists are available for volume orders.

Stock items are generally dispatched within one to three working days after order confirmation. DHL, UPS, FedEx, TNT and EMS are available for international delivery; larger consolidated orders can move by air or sea freight. Customer courier accounts and nominated forwarders are accepted.