Articles

Learn what the Cisco Catalyst C9300L-48UXG-4X-A switch does, including multigig ports, 10G uplinks, PoE, stacking, licensing, and enterprise deployment use cases.

Learn Cisco Catalyst 9200L features in simple terms, including stacking, security, PoE+, VLANs, Layer 3 routing, and Network Essentials licensing for enterprise networks.

Learn how to avoid scams when buying used server hardware online, including how to verify sellers, confirm serial numbers, inspect refurbished servers, and protect payments.

Compare refurbished vs new AI GPUs for training and inference workloads. Learn when refurbished GPUs can save money without sacrificing performance, and what risks to evaluate before buying.

Compare NVIDIA H100 vs H200 vs B200 for LLM training performance, including memory bandwidth, scaling efficiency, long-context training, and multi-node throughput.