United States
| Name: |
834976-B21 |
| Description: | Mellanox IB EDR 36P Unmanaged Switch:HPCD InfiniBand Accessories |
| Rating: |
(0)
Added to cart 19 times recently |
| Availability: |
In stock - Ready to Ship
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| Warranty: |
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3 Year Extended Warranty
Same-day Shipping
14-Day Money Back Guarantee
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Same-day Shipping
Express Delivery Across the USA
Need it fast? Choose Express Shipping and receive your order within 1–3 business days.
Free Ground Shipping Available
Standard ground delivery across the U.S. takes 2–6 days, depending on your location — no extra charge.
International Shipments Made Simple
For all international orders, we ship via your UPS, FedEx, or DHL account — or to your U.S.-based freight forwarder.
Delivery Timelines
Under 100 KG? Ships Express.
Smaller shipments go via DHL or FedEx Express — delivered worldwide in approximately 3 business days.
Over 100 KG? Ships via Freight.
Larger orders are dispatched through freight forwarding partners. Delivery takes 7–10 business days, globally.
Always Delivered to Your Door
Every shipment is delivered directly to your address — regardless of country or carrier.
Our best-in-class warranties
3-Year Extended Warranty
Extended protection, enterprise-grade.
All enterprise hardware is backed by a 3-year warranty — triple the industry standard — covering defects under normal use.
Professional repairs & replacements.
If a hardware issue is confirmed, we’ll repair or replace the unit. Replacement parts carry either original or 3-month coverage.
RMA process, simplified.
Once an RMA is approved, return the defective unit within 10 days. We handle the rest — no service gaps.
Service Boundaries & Exclusions
What’s covered — and what’s best avoided.
Your warranty covers defects under normal use. For continued protection, avoid accidental damage, unauthorized repairs, third-party parts, or extreme environments.
Know your location’s service type.
In some regions, return-to-factory or remote service may apply. On-site service depends on infrastructure availability.
Minimal documentation required.
To initiate service, just submit the invoice and warranty card — no red tape, no waiting.
14-Day Money Back Guarantee
Free 14-Day Returns
Tested it, but it’s not a fit?
Return any product within 14 days of delivery if it doesn’t meet your technical or operational needs.
Initiate returns with ease.
Our RMA process is streamlined — just raise a request, follow the packaging guidelines, and we’ll handle the rest.
Refund or restock, your call.
Changed your mind? Get a refund (restocking fees may apply) or swap with another product.
30-Day Hardware Replacement
Covered for any early faults.
All equipment includes a 30-day replacement warranty. If something goes wrong, we’ll repair or swap it — fast.
Replacements shipped in 10 days or less.
Once your return is inspected and approved, we dispatch the replacement promptly to keep your operations moving.
RMA protocol keeps it smooth.
Just ensure all accessories and original packaging are intact — we’ll take care of the technical validation.
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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.
What is the price of 834976-B21?
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834976-B21 Specifications
| Product Type | Switch |
| Power Source | AC Power Supply |
| Layer Supported | Layer 2 |
| Form Factor | Rack-mount |
| Power Consumption | 75 W |
| Number Of Ethernet Ports | 24–48 Ports |
| Number Of Downlink Ports | 8 Ports |
| Manageable | Managed |
| Ethernet Technology | 10/100/1000 |
| Media Type Supported | Combo |
| Redundant Power Supply Supported | No |
| Manufacturer Part Number | 834976-B21 |
| Uplink Configuration | 1G |
| IOS | LAN Base |
| POE Support | POE+ |
| SFP Ports | 4 SFP Ports |
| Memory | 256 MB |
| Rack Units | 1 RU |
| Interface Ports | 10/100/1000 |
| Port/Expansion Slot Details | 24 POE+ Ethernet ports, 4 SFP uplink ports |
| Flash Memory | 64 MB |
| Switching Capacity | 128 Gbps |
| Switching Capacity With Stacking | 256 Gbps |
| Product Name | 834976-B21 24-Port Managed Gigabit Switch with POE+ |
| Height | 1 inch |
| Width | 17.5 inches |
| Depth | 14 inches |
| Weight | 12 lbs |
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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| Product Type | Switch | Switch | Switch | Switch | Switch |
| Power Source | AC Power Supply | AC Power Supply | AC Power Supply | AC Power Supply | AC Power Supply |
| Layer Supported | Layer 2 / Layer 3 | Layer 2 | Layer 2 | Layer 2 / Layer 3 | Layer 2 |
| Form Factor | Rack-mount | Rack-mount | Rack-mount | Rack-mount | Desktop |
| Power Consumption | 435 W | 195W | 75 W | 46 W | 8W |
| Number of Ethernet Ports | 24–48 Ports | 24–48 Ports | 24–48 Ports | 12–24 Ports | Under 12 Ports |
| Number of Downlink Ports | 48 Ports | 24 Ports | 8 Ports | 24 Ports | N/A |
| Manageable | Managed | Managed | Managed | Managed | Unmanaged |
| Ethernet Technology | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Media Type Supported | Twisted Pair | Twisted Pair / Fiber | Combo | Twisted Pair / Fiber | Twisted Pair |
| Redundant Power Supply Supported | Yes | No | No | No | No |
| Manufacturer Part Number | WS-C3850-48UW-S | SG200-26FP | 834976-B21 | EX4300-24T-TAA | TL-SG1005LP |
| Uplink Configuration | 10G | 1G | 1G | 1G / 10G | 1G |
| IOS | IP Services | LAN Lite | LAN Base | IP Services | N/A |
| POE Support | POE+ | POE | POE+ | Non POE | POE |
| SFP Ports | 4 SFP Ports | Combo | 4 SFP Ports | 4 SFP Ports | N/A |
| Memory | 4 GB | 128 MB | 256 MB | 512 MB | N/A |
| Rack Units | 1 RU | 1 RU | 1 RU | 1 RU | N/A |
| Interface Ports | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Port/Expansion Slot Details | 48 PoE+ Ethernet ports and 4 fixed 10G SFP+ uplink ports | N/A | 24 POE+ Ethernet ports, 4 SFP uplink ports | 24 x 10/100/1000 Ethernet ports and 4 x 1/10G SFP+ uplink ports | N/A |
| Flash Memory | 256 MB | 32 MB | 64 MB | 256 MB | N/A |
| Switching Capacity | 160 Gbps | 32Gbps | 128 Gbps | 128 Gbps | 10 Gbps |
| Switching Capacity with Stacking | 480 Gbps | 64Gbps | 256 Gbps | N/A | N/A |
| Product Name | Cisco Catalyst 3850-48UW-S | Cisco SG200-26FP 26-Port PoE Smart Switch | 834976-B21 24-Port Managed Gigabit Switch with POE+ | EX4300-24T-TAA Ethernet Switch | TL-SG1005LP 5-Port Gigabit PoE Switch |
| Height | 1.75 inches | 1.75 inches | 1 inch | 1.73 inches | N/A |
| Width | 17.5 inches | 17 inches | 17.5 inches | 17.5 inches | N/A |
| Depth | 19.3 inches | 11 inches | 14 inches | 10.7 inches | N/A |
| Weight | 26 lbs | 8 lbs | 12 lbs | 7.5 lbs | N/A |
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