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834976-B21
Mellanox IB EDR 36P Unmanaged Switch:HPCD InfiniBand Accesso...
Trusted by the Highest-Stakes Buyers
Federal agencies and Fortune 500 operations source through ORM Systems.
US Government & Defense
Enterprise Clients
Built Global. Stocked Local.
Regional teams and 25+ distribution partners keep stock near you and accountability in your time zone.
Buyer Protection on Every Order
Pay by PayPal or Revolut with full chargeback rights. Order on PO terms, Net-30 for government.
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Every registration we claim is public record — check our federal contractor status yourself before you spend a dollar.
Since 2016, Enterprise-Trusted
Ten years serving buyers who audit their vendors. From federal agencies to 20,000+ enterprise clients worldwide.
834976-B21 is built on a robust, ASIC-based architecture that delivers high-performance switching with a streamlined design optimized for business networking. The switch offers versatile port configurations with both twisted pair and SFP uplink options, ensuring seamless connectivity and efficient power management via an AC power supply.
834976-B21 features reliable stacking capabilities and scalability designed to support growing enterprise networks, enabling simplified management and optimal throughput under heavy data loads. Its performance-centric design makes it ideal for campus networks, branch offices, and other use cases where consistent, secure connectivity is paramount.
834976-B21 price for new stock is is available on request. Get immediate quote. 834976-B21 refurb price is $603.75.
Request bulk order quote for 834976-B21 for additional pricing. Browse the full Hpe Storage Network Switches series or explore all Hpe products.
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| 834976-B21 |  JH017A |  AK242B |  JG225B |  JH018A | |
|---|---|---|---|---|---|
| Depth | 14 inches | 18 inches | 12 inches | 12 inches | 11 inches |
| Ethernet Technology | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Flash Memory | 64 MB | 256 MB | 64 MB | 32 MB | 64 MB |
| Form Factor | Rack-mount | Rack-mount | Rack-mount | Rack-mount | Rack-mount |
| Height | 1 inch | 1.75 inches | 1 inches | 1 inch | 1.75 inches |
| IOS | LAN Base | IP Services | IP Services | LAN Base | IP Services |
| Interface Ports | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Layer Supported | Layer 2 | Layer 3 | Layer 2 / Layer 3 | Layer 2 / Layer 3 | Layer 2 / Layer 3 |
| Manageable | Managed | Managed | Managed | Managed | Managed |
| Manufacturer Part Number | 834976-B21 | JH017A | AK242B | JG225B | JH018A |
| Media Type Supported | Combo | Combo | Combo | Twisted Pair / Fiber / Combo | Combo |
| Memory | 256 MB | 512 MB | 256 MB | 256 MB | 256 MB |
| Number of Downlink Ports | 8 Ports | 24 Ports | 24 Ports | 8 Ports | 24 Ports |
| Number of Ethernet Ports | 24–48 Ports | 24–48 Ports | 24–48 Ports | 24–48 Ports | 24–48 Ports |
| POE Support | POE+ | POE+ | POE+ | Non POE | POE+ |
| Power Consumption | 75 W | 150 W | 120W | 120 W | 75 W |
| Power Source | AC Power Supply | AC Power Supply | AC Power Supply | Redundant Power Supply, AC Power Supply | AC Power Supply, Redundant Power Supply |
| Product Name | 834976-B21 24-Port Managed Gigabit Switch with POE+ | JH017A Modular Enterprise Switch | AK242B Enterprise Network Switch | JG225B High-Performance Managed Switch | JH018A Next-Generation Stackable Switch |
| Product Type | Switch | Switch | Switch | Switch | Switch |
| Rack Units | 1 RU | 1 RU | 1 RU | 1 RU | 1 RU |
| Redundant Power Supply Supported | No | Yes | Yes | Yes | Yes |
| SFP Ports | 4 SFP Ports | 4 SFP Ports | 4 SFP Ports | 4 SFP Ports | 4 SFP Ports |
| Switching Capacity | 128 Gbps | 320 Gbps | 128 Gbps | 128 Gbps | 128 Gbps |
| Switching Capacity with Stacking | 256 Gbps | 1280 Gbps | 256 Gbps | 256 Gbps | 256 Gbps |
| Uplink Configuration | 1G | 10G | 10G | 1G / 10G | 10G |
| Weight | 12 lbs | 15 lbs | 15 lbs | 15 lbs | 12 lbs |
| Width | 17.5 inches | 17.5 inches | 17 inches | 17.5 inches | 17.5 inches |
Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Reviewed on the 20 January 2018
InfiniBand switch delivers excellent throughput.
Reviewed on the 24 July 2022
Plug-and-play for HPC environments.
Reviewed on the 15 May 2024
Very stable unmanaged switch.
Reviewed on the 8 February 2023
Handles EDR traffic effortlessly.
Reviewed on the 11 July 2022
Strong choice for cluster networking.
The Mellanox IB EDR 36P Unmanaged Switch is a high-performance InfiniBand EDR (100 Gb/s) switch featuring 36 ports designed for low-latency, lossless HPC and AI cluster interconnects.
Each of the 36 EDR ports delivers up to 100 Gb/s full-duplex bandwidth, providing a total throughput of 7.2 Tb/s for demanding data-center workloads.
The switch supports QSFP28 transceivers and passive/active copper or optical QSFP28 cables, enabling link distances from 0.5 m (DAC) up to 100 m (SR optics) or longer with LR optics.
No. As an unmanaged switch, it provides plug-and-play operation, auto-negotiation of port speeds, and does not require user configuration or a management interface.
The IB EDR 36P switch delivers ultra-low port-to-port latency of approximately 90 ns, ensuring minimal communication delay for latency-sensitive applications.
Under full load, the switch consumes up to 250 W, featuring efficient power supplies and variable-speed fans to optimize energy usage in data-center environments.
Yes. The unit fits a standard 1U rack slot (19″ cabinet) and includes mounting brackets and hardware for quick installation in server racks.
The switch is OS-agnostic and interoperates with any operating system or RDMA-capable driver (Mellanox OFED for Linux, Windows HPC Server, VMware, etc.) using the InfiniBand protocol.
Yes. It interoperates seamlessly with Mellanox and third-party fabric managers via standard InfiniBand routing and subnet management, although it offers no on-box management.
Ideal for HPC clusters, AI/ML training, data analytics, and storage networks requiring low-latency, high-bandwidth connectivity in a plug-and-play form factor.
Yes. Firmware can be updated via Mellanox’s Firmware Tools (MFT) over In-band or Out-of-band connections, ensuring access to the latest features and stability fixes.
It comes with a one-year hardware warranty and access to Mellanox’s global support portal, with optional extended support and advanced replacement services available.
With passive copper QSFP28 cables, up to 5 m; active copper up to 10 m; SR optics up to 100 m; and LR optics can extend links beyond 200 m over single-mode fiber.
Verify cable integrity, ensure QSFP28 modules are seated properly, check link LEDs for activity, and use InfiniBand diagnostic tools (ibstat, iblinkinfo) on host nodes.
Unmanaged switches offer plug-and-play simplicity with no CLI or GUI, while managed switches provide advanced features (QoS, VLANs, monitoring) and require configuration.
United States
