High-Bandwidth Interconnects
100G, 200G & 400G Solutions for AI, HPC & Data Centers
In the era of explosive AI growth, high-bandwidth networking is no longer optional—it's essential. Whether you're scaling GPU clusters for LLM training, upgrading hyperscale data centers, or building low-latency InfiniBand/Ethernet fabrics, reliable 100G+, 200G, and 400G interconnects deliver the performance you need without breaking the budget.
At ShopITgear, we specialize in refurbished and new high-bandwidth optics and cables from trusted brands like Cisco, NVIDIA/Mellanox, and Arista. Save 70-90% vs. new MSRP while getting fully tested gear backed by our lifetime warranty, same-day shipping, and expert support. No big-distributor hassles—just fast, personalized service for IT pros who know what they need.
Why Choose Refurbished High-Bandwidth Interconnects?
- Massive Cost Savings: Enterprise-grade 400G QSFP-DD transceivers and breakout cables at a fraction of OEM prices—perfect for budget-conscious AI builds and data center expansions.
- Proven Reliability: Every item is rigorously tested in real-world environments, with detailed certification reports available.
- Fast Deployment: Stocked for immediate shipping; ideal for time-sensitive AI cluster rollouts or network upgrades.
- Eco-Friendly: Extend the life of premium hardware from decommissioned hyperscalers, reducing e-waste without sacrificing performance.
Our High-Bandwidth Categories
- 100G Interconnects: QSFP28 transceivers (SR4, LR4, BiDi), DAC copper cables (1-5m), and AOCs—great for transitioning from 40G to modern AI-ready networks.
- 200G Interconnects: QSFP56 DACs and AOCs (NVIDIA/Mellanox LinkX compatible)—optimal for mid-scale GPU nodes and high-throughput storage.
- 400G Interconnects: The future of AI networking. QSFP-DD and OSFP transceivers (SR8, DR4), breakout DAC/AOCs (400G to 4x100G or 2x200G), and direct-attach cables—designed for NVIDIA H100/B200 clusters and beyond.
Ideal Use Cases
- AI & Machine Learning Clusters: Low-latency, high-bandwidth links for multi-node training (e.g., NVIDIA DGX/HGX systems).
- Hyperscale Data Centers: Dense, power-efficient optics for spine-leaf architectures.
- High-Performance Computing (HPC): InfiniBand or Ethernet fabrics for research and simulation workloads.
- Hybrid Upgrades: Breakout cables to bridge legacy 100G gear with new 400G infrastructure.
Popular searches we help with: refurbished 400G QSFP-DD, affordable NVIDIA Mellanox 400G breakout, 100G DAC for AI, high-speed optics with warranty.
Need a custom bundle, compatibility check, or quote for volume? Contact us today—we're here to help you build faster, smarter networks. Browse below or reach out for hard-to-find parts.
From the blog
In the world of enterprise networking, Cisco and Aruba (now under HPE) remain two of the most respected names for...
If you’ve spent any time in a data center recently, especially one focused on AI infrastructure or high-performance computing (HPC),...
Decommissioned AI Hardware?
Sitting on Decommissioned AI Hardware? Turn Surplus GPUs and Network Gear Into Value Every year, companies quietly retire powerful IT...
Aruba vs. Cisco: Pros, Cons, and Which Fits Your Business in 2026
In the world of enterprise networking, Cisco and Aruba (now under HPE) remain two of the most respected names for...
If you’ve spent any time in a data center recently, especially one focused on AI infrastructure or high-performance computing (HPC),...
Decommissioned AI Hardware?
Sitting on Decommissioned AI Hardware? Turn Surplus GPUs and Network Gear Into Value Every year, companies quietly retire powerful IT...
Testimonials
Got to me in 2 days, looks as professional as CDW.