NVIDIA Spectrum switches
Spectrum-3 and Spectrum-4 Ethernet switches, from the 100GbE SN2700 up to the 64-port 800GbE SN5600, including Spectrum-X fabrics for AI training clusters.
Shop the collection →Solutions · AI Hardware
On-premise AI hardware: GPU clusters that keep your data in your building
The fabric private AI runs on — Spectrum and Nexus switching, ConnectX NICs, optics and cabling for training, fine-tuning and inference that never leaves your network. New and certified refurbished, backed by a 10-year warranty; complete systems with GPU compute spec'd and sourced to your BOM.
Cisco switches for AI data centers
Cisco Nexus and Catalyst switching, plus the N9300 Smart Switch line with embedded DPUs for shops standardizing on Cisco silicon.
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ConnectX NICs & SuperNICs
ConnectX-6 and ConnectX-7 adapters — the GPU-side half of the fabric, in 25/100/200GbE.
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Reef Optics for Mellanox fabrics
QSFP28/QSFP112 transceivers and DAC/AOC cabling coded for NVIDIA/Mellanox, Cisco, and Arista. Optics carry a lifetime warranty.
Shop the collection →Why shops buy AI hardware from Reef
Price is the obvious reason. AI fabrics take dozens — sometimes hundreds — of identical switches, NICs, and optics. Certified refurbished gear cuts that bill hard, and every unit is tested before it ships.
The second reason is the warranty. Our 10-year warranty covers the switches and phones we sell, so a refurbished spine switch isn't a gamble.
And availability. Popular Spectrum and Nexus models move fast, and lead times on new gear can stall a build. If we have it, it ships the same day. Send us your BOM and we'll quote what we can supply, with alternates where a model is scarce.
Building a private AI system?
The hardware is only half of it. Reef also deploys and tunes on-premise AI: we spec the system, stand up private models and copilots on it, and tune them on your own data — so the AI your team uses never sends your documents, tickets or customer data to a public cloud.
Start with an AI Opportunity Audit: two weeks, a ranked plan, and a fixed-price proposal for the deployment. Ask us on live chat or open a support ticket to scope it.
Common questions
Do you sell new or refurbished?
Both. Refurbished gear is Grade A — tested, certified, and covered by our 10-year warranty. Listings say which is which, plainly.
Can you match a full cluster BOM?
Send it over. We'll price the switches, NICs, optics, and cabling we can supply and flag anything we'd source differently.
Are your optics coded for Mellanox/Spectrum?
Reef Optics are coded and tested for the platform you name — NVIDIA/Mellanox, Cisco, Arista and others — and carry a lifetime warranty.
Can you help us deploy and tune the models, not just sell the hardware?
Yes — that's our AI consulting practice. We deploy private models and copilots on the hardware, build retrieval over your documents, and fine-tune on your data and terminology. It starts with a two-week AI Opportunity Audit; ask on live chat or open a support ticket and we'll scope it.
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