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.
400G vs 800G for AI Clusters: Which to Buy in 2026
A procurement-grade decision framework for 400G vs 800G optics in 2026 — costs, watts/Gbps, switch silicon compatibility, and the 5-step rule ABPTEL uses with AI cluster customers.
Calculating Reach and Application Fit for High-Speed Transceivers
Selecting the right high-speed transceiver technology is critical for modern network design, particularly in data centers, AI clusters, and edge computing environments. Engineers need to