Tech Theory: Teachnical & Practical & Interesting Fiber optical for network
800G DAC Cable for Nvidia DGX & HGX: Specs & Sourcing Guide
When building Nvidia DGX H100, DGX H200, or HGX-based AI clusters, the interconnect cable between GPUs, NICs, and top-of-rack switches is a critical but often
How to Order MPO Trunks: A 9-Point Procurement Checklist
Avoid MPO trunk reorder cycles. The full 9-field procurement checklist used by professional fiber buyers, with a ready-to-send RFQ template and supplier-side response time expectations.
Cisco Nexus 800G QSFP-DD Compatible MPO Cabling: A Procurement Guide
A procurement guide for sourcing Cisco Nexus 9000 series 800G QSFP-DD compatible optics and matching MPO cabling — covers compatibility, polarity, firmware coding, and lead time.
MPO-LC Breakout Cassettes: A-to-A vs A-to-B Polarity Guide
Pick the right MPO-LC breakout cassette for your data center — A-to-A versus A-to-B explained, with a polarity cheat sheet and procurement traps to avoid.
MTP/MPO Type A vs Type B vs Type C Polarity Explained
A practical guide to TIA-568 polarity standards for MPO/MTP fiber cabling — when to use Type A, Type B, or Type C, with a decision tree and procurement checklist.
MPO-12 vs MPO-16 for 800G: A Procurement Guide for AI Data Centers
When to use MPO-12 versus MPO-16 connectors for 800G optics — covering DR8, SR8, 2×DR4, 2×FR4, costs, polarity, lead times, and a 4-step procurement decision rule.