Support dense 100 GbE switching with a QSFP28 transceiver built for HP-compatible environments. The Axiom 845972-B21-AX uses a 100GBASE-BIDI design, which is well suited to infrastructure teams that need high bandwidth without expanding cabling complexity. In practical terms, that means cleaner rack layouts, fewer fiber runs to manage, and a more efficient path to 100 Gigabit Ethernet in space-constrained network layers. This module is a strong fit for enterprise data centers, aggregation tiers, and other high-throughput optical links where port density and operational simplicity carry real value. The QSFP28 form factor keeps it aligned with modern 100 GbE hardware, while the HP compatibility focus helps standardize procurement across installed fleets. For organizations comparing optics at scale, the value is not just speed — it is the ability to preserve switch density and keep the physical layer easier to service. Choose this transceiver when you need 100 GbE connectivity that fits tightly managed infrastructure and supports a disciplined optical strategy.