United States$5,000,000+
Inventory Delivered By
V
Victor Alvarez
4
InfiniBand switch delivers excellent throughput.
834976-B21
Original Stock
Ready to Ship
Mellanox IB EDR 36P Unmanaged Switch:HPCD InfiniBand Accesso...
FEATURED DEAL
Name:
834976-B21
- Description:
- Mellanox IB EDR 36P Unmanaged Switch:HPCD InfiniBand Accessories
- Rating:
Added to cart 28 times recently
- Availability:
In stock - Ready to Ship
- Brand:
- Hpe
- Condition:
3 Year Extended Warranty
Same-day Shipping
14-Day Money Back Guarantee
Shipping:
Payment:
3 Year Extended Warranty
Same-day Shipping
14-Day Money Back Guarantee
Need Additional Discount on Product?
Request a quote below - Get Exclusive Pricing and Support.
Shipping:
Payment:
TRUSTED, TRIED, PROVEN
Officially Accredited
& Verified By
Next-Gen IT
Solutions Powered By
834976-B21 Overview
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 is is available on request. Get immediate quote.
Request bulk order quote for 834976-B21 for additional pricing. Browse the full category range or explore all Hpe products.
834976-B21 Specifications
- Product Type
- Switch
- Power Source
- AC Power Supply
- Form Factor
- Rack-mount
- Number of Ethernet Ports
- 24–48 Ports
- Manageable
- Managed
- Ethernet Technology
- 10/100/1000
- Redundant Power Supply Supported
- No
- Uplink Configuration
- 1G
- IOS
- LAN Base
- SFP Ports
- 4 SFP Ports
- Memory
- 256 MB
- Rack Units
- 1 RU
- Interface Ports
- 10/100/1000
- Flash Memory
- 64 MB
- Media Type Supported
- Combo
- Width
- 17.5 inches
- Switching Capacity
- 128 Gbps
- POE Support
- POE+
- Weight
- 12 lbs
- Layer Supported
- Layer 2
- Switching Capacity with Stacking
- 256 Gbps
- Number of Downlink Ports
- 8 Ports
- Height
- 1 inch
- Power Consumption
- 75 W
- Depth
- 14 inches
- Manufacturer Part Number
- 834976-B21
- Port/Expansion Slot Details
- 24 POE+ Ethernet ports, 4 SFP uplink ports
- Product Name
- 834976-B21 24-Port Managed Gigabit Switch with POE+
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| 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+ |
| Port/Expansion Slot Details | 24 POE+ Ethernet ports, 4 SFP uplink ports | 2 expansion slots available | N/A | N/A | 24 fixed Ethernet ports with 4 SFP uplink ports |
| 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 |
Reviews & Ratings
A
Areeba Sohail
4
Plug-and-play for HPC environments.
H
Henning Roth
5
Very stable unmanaged switch.
O
Owais Raza
4
Handles EDR traffic effortlessly.
L
Lauren King
5
Strong choice for cluster networking.
Questions & Answers
What is the Mellanox IB EDR 36P Unmanaged Switch (SKU: 834976-B21)?
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.
What port speed and throughput does the IB EDR 36P switch support?
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.
What type of transceivers and cables are compatible with this switch?
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.
Is configuration required for the unmanaged EDR 36P switch?
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.
What is the typical port-to-port latency on this switch?
The IB EDR 36P switch delivers ultra-low port-to-port latency of approximately 90 ns, ensuring minimal communication delay for latency-sensitive applications.
How much power does the Mellanox IB EDR 36P consume?
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.
Is the EDR 36P switch rack-mountable?
Yes. The unit fits a standard 1U rack slot (19″ cabinet) and includes mounting brackets and hardware for quick installation in server racks.
Which operating systems and drivers are compatible with this switch?
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.
Can the unmanaged EDR 36P switch integrate into a larger managed fabric?
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.
What are the primary use cases for this InfiniBand EDR switch?
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.
Does the switch support firmware updates?
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.
What warranty and support does the Mellanox IB EDR 36P include?
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.
What is the maximum recommended link distance for each port?
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.
How do I troubleshoot connectivity issues on the unmanaged switch?
Verify cable integrity, ensure QSFP28 modules are seated properly, check link LEDs for activity, and use InfiniBand diagnostic tools (ibstat, iblinkinfo) on host nodes.
What distinguishes this unmanaged EDR switch from a managed switch?
Unmanaged switches offer plug-and-play simplicity with no CLI or GUI, while managed switches provide advanced features (QoS, VLANs, monitoring) and require configuration.