NVIDIA Mellanox Voltaire 4036 (VLT-30111), 36-Port 40Gb/s QDR InfiniBand Switch, 1U with Dual Power Supplies: This is a 1U managed InfiniBand edge switch with 36 QSFP ports, each running at 40 Gb/s QDR (Quad Data Rate). The Voltaire 4036 includes an embedded subnet manager, allowing it to manage a small InfiniBand fabric without an external SM host. This is a NEW unit shipping with two power supplies.
Engineering Context
The Voltaire 4036 was originally a Voltaire-branded product line later acquired by Mellanox (now NVIDIA Networking). It uses InfiniScale-IV silicon and provides 2.88 Tb/s of non-blocking aggregate switching capacity (36 ports × 40 Gb/s × 2 directions). The embedded subnet manager handles up to 108 nodes in standalone mode, making the unit suitable for small to mid-sized HPC clusters and storage fabrics. Port-to-port latency is approximately 100 ns. The 1U chassis includes redundant N+1 power supplies.
Deployment & Use Cases
Edge or top-of-rack switch in QDR-class HPC clusters running MPI workloads. InfiniBand storage fabric for legacy Lustre, GPFS, and BeeGFS deployments still on QDR. Lab and research-cluster builds where new-condition Voltaire 4036 units provide cost-effective InfiniBand without going to FDR/EDR. Branch-office or small-site clusters needing self-contained subnet management without a dedicated SM host.
Technical Specifications
- OEM: NVIDIA Mellanox (Voltaire brand)
- Part Number: VLT-30111
- Model: Voltaire Grid Director 4036
- Ports: 36 x QSFP InfiniBand
- Port Speed: 40 Gb/s QDR per port
- Aggregate Bandwidth: 2.88 Tb/s
- Latency: ~100 ns port-to-port
- Switching Silicon: InfiniScale-IV
- Subnet Manager: Embedded (manages up to 108 nodes)
- Form Factor: 1U rack-mount
- Power Supplies: 2 (redundant N+1)
- Condition: New
Compatibility & Hard Constraints
Runs InfiniBand QDR (40 Gb/s) only — does NOT support FDR (56 Gb/s), EDR (100 Gb/s), or HDR (200 Gb/s). Will negotiate down to DDR (20 Gb/s) and SDR (10 Gb/s) for legacy adapters. Embedded SM is suitable for small fabrics; for clusters above 108 nodes, OpenSM running on a dedicated Linux host is recommended. QSFP cages — does NOT accept QSFP28 (no 100Gb support). Compatible with ConnectX-2, ConnectX-3, and ConnectX-3 Pro QDR adapters; ConnectX-4 and later will negotiate down to QDR.
Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS supplies new-condition Voltaire 4036 units with both power supplies and pre-sale firmware verification. Worldwide shipping with 1–3 business day handling and post-sale fabric configuration consultation. Visit T.E.S IT-SOLUTIONS for the full InfiniBand inventory.