Panduit QZRBCCV0001F072 72-Fiber ST Trunk Cable Assembly

The Panduit QZRBCCV0001F072 delivers a factory-terminated 72-fiber trunk solution for high-density data center and telecom backbone installations where deployment speed and connection reliability are critical. This riser-rated assembly features ST connectors on both ends in a cassette-to-cassette configuration, eliminating field termination labor and the risk of inconsistent splice loss. Pre-tested at the factory, each fiber meets or exceeds TIA-568 insertion loss and return loss specs, giving you a known-good baseline before the first rack goes live. For integrators managing fiber counts above 48 strands or working under tight commissioning windows, this trunk cuts installation time by 60–70% compared to field-terminated pulls.

Key Features

• 72-fiber capacity in a single trunk assembly — supports high-density switch fabrics, SAN extensions, or multi-tenant distribution without home-run clutter
• Factory-terminated ST connectors — consistent 0.3 dB typical insertion loss across all 72 fibers, eliminating field polish variables and bad-actor connectors
• Cassette-based VL architecture — modular breakout at both ends allows phased turn-up and simplified MACDs without disturbing live circuits
• Riser (OFNR) flame rating — approved for vertical pathways between floors in non-plenum spaces, covering most riser and equipment room deployments
• Blue jacket color-coding — instant visual identification in mixed copper/fiber environments, reducing mis-patch risk during MACs
• Pre-tested insertion loss and return loss documentation included — no OTDR guesswork; troubleshooting starts with a known-good reference
• Standard packaging with protective end caps — coiled to avoid minimum bend radius violations during staging and install

Pre-terminated trunk assemblies solve three pain points on large fiber jobs: termination consistency, commissioning schedule compression, and long-term troubleshooting overhead. In a 72-strand field-term scenario, you're looking at 144 connector ends (TX/RX per fiber, both ends of the trunk). Even at a 98% first-pass yield — which is optimistic for field conditions — you're statistical

The cassette-to-cassette format matters for operational flexibility. Each end breaks out to a modular cassette (VL variant in Panduit's line) that mounts in standard fiber enclosures or patch panels. You're not locked into a monolithic 72-port block — if you need to migrate 24 fibers to a different rack or re-home a tenant's circuit, you swap the cassette without pulling the trunk. The blue OFNR jacket is riser-rated for vertical pathways (shafts, risers, non-plenum spaces between floors), which covers the majority of intra-building backbone runs. If your pathway crosses a plenum ceiling, you'll need plenum-rated (OFNP) instead; verify your AHJ requirements before specifying. ST connectors are the legacy workhorse — not the lowest insertion loss by 2026 standards, but bulletproof in high-vibration environments and backward-compatible with the installed base in government, healthcare, and industrial facilities where LC migration hasn't happened yet.

Deployment context: this trunk is built for entrance facilities, main distribution areas (MDAs), and horizontal distribution areas (HDAs) in enterprise or colocation environments where switch or storage fabrics require more than 48 strands between two points. Common use cases include SAN island-to-island links in a storage cluster, multi-chassis switch stacks with redundant fabric paths, or carrier hand-off extensions where you're bridging a demarc to your core without intermediate active gear. The 72-fiber count also maps cleanly to 3×24-port cassettes if you're using MPO-to-ST breakout modules, giving you a migration path to higher-density MPO trunks down the road without re-pulling cable. Installation is pull, rack, document — no fusion splicer, no APC polish film, no arguments about whether the cleave angle on strand 37 is within spec. You show up with the trunk coiled in a pull-safe config, stage it to avoid the 10× bend radius limit (typically 3" minimum for 72-count), secure it in the tray per NEC 770, cross-connect both ends, and you're live.

This assembly is factory-tested to TIA-568.3-D insertion loss and return loss specifications, with test results included in the package. That reference becomes your day-one baseline for any future trouble tickets — if a fiber underperforms six months later, you can compare against the factory IL to determine whether it's a new fault (bent cassette, contaminated connector) or environmental (temperature-induced microbend). For integrators working on prevailing-wage jobs or fixed-price bids, the labor arbitrage is measurable: field termination of 72 ST connectors (144 ends) is roughly 18–22 labor-hours for a skilled tech, plus consumables and test time. A pre-term trunk eliminates that line item entirely, shifting the cost to the BoM but de-risking the schedule and removing a variable-quality step from your critical path.