2026

Wondering how many core in fiber optic cable projects need? Get the instant answer, the two-cores-per-device formula, a 2 to 576 core comparison chart, and expert sizing tips.

What is 800V HVDC? It is the 800V high voltage DC power architecture for AI data centers, set for 2027. Learn how it cuts copper 45%, supports 1MW racks, and works.

Learn all fiber patch cable types by connector, fiber mode, polish, and jacket. Compare LC, SC, MPO, single vs multimode, and pick the right cord for your link.

What is an optical transceiver? Learn how it works, key types from SFP to 800G QSFP-DD, performance metrics, naming rules, and troubleshooting tips. Expert guide by COBTEL.

Learn what co packaged optics (CPO) is, how it cuts data center power by up to 70%, and why it's the future of AI networking. A clear, expert guide by COBTEL.

Learn all types of fiber optic connectors: LC, SC, ST, FC, MPO/MTP plus PC/UPC/APC end faces. Compare specs, selection tips, and maintenance the most complete guides from COBTEL.

Learn what a fiber optic loopback adapter is, the types available (duplex and MPO), polarity methods (A, B, C), and how to run a hard loopback test step by step.

Learn the key differences between APC vs UPC fiber connectors in 2026: end-face shape, return loss, polishing types, compatibility rules, and how to choose the right one.

What is MPO cable? Learn how it works, why 800G/1.6T demand is surging, and how to select the right fiber count, polarity, and OM grade for your project in 2026.

Learn the three mainstream 800V DC/DC power supply schemes for AI data center server racks in 2026. Compare 800V-to-50V, 800V-to-12V, and 48V VRM architectures.

Learn different fiber transceiver types from SFP to QSFP-DD800 from 1G to 800G. Covers specs, signaling tech (NRZ/PAM4), a full comparison table, and a 4-factor selection guide.

Compare QSFP-DD vs OSFP form factors for 400G/800G deployments. Covers specs, backward compatibility, migration paths, TCO, deployment steps, and troubleshooting.