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Name:
658250-B21
- Description:
- HP 6125G/XG BLADE SWITCH OPT KIT
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3 Year Extended Warranty
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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.
TRUSTED, TRIED, PROVEN
658250-B21 Overview
658250-B21 is a robust, high-performance network switch engineered for scalable enterprise applications. It features a versatile architecture that supports both Layer 2 and Layer 3 operations, with flexible power options including standard AC power supply and redundant configurations to meet mission-critical uptime requirements.
This switch delivers a comprehensive port design with 24 Ethernet ports complemented by 4 SFP uplink slots, enabling efficient stacking and outstanding throughput performance. Ideal for campus networks, data center aggregation, and other demanding environments, 658250-B21 offers exceptional scalability, reliability, and high-speed connectivity.
What is the price of 658250-B21?
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Explore more options from Switches or explore other Hpe products.
658250-B21 Specifications
| Product Type | Switch |
| Power Source | AC Power Supply |
| Layer Supported | Layer 2 / Layer 3 |
| Form Factor | Rack-mount |
| Power Consumption | 75 W |
| Number Of Ethernet Ports | 24–48 Ports |
| Number Of Downlink Ports | 24 Ports |
| Manageable | Managed |
| Ethernet Technology | 10/100/1000 |
| Media Type Supported | Combo |
| Redundant Power Supply Supported | Yes |
| Manufacturer Part Number | 658250-B21 |
| Uplink Configuration | 10G |
| IOS | IP Services |
| 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 x 10/100/1000 Ethernet ports with 4 SFP uplink slots |
| Flash Memory | 64 MB |
| Switching Capacity | 128 Gbps |
| Switching Capacity With Stacking | 256 Gbps |
| Product Name | Enterprise Stackable Managed Switch 658250-B21 |
| Height | 1.75 inches |
| Width | 17.5 inches |
| Depth | 11 inches |
| Weight | 15 lbs |
658250-B21 Use Case
Enterprise Virtualization Network Consolidation with 658250-B21-HP 6125G/XG Blade Switch Option Kit
In a large enterprise data center running VMware vSphere and Microsoft Hyper-V, integrating the 658250-B21-HP 6125G/XG Blade Switch Option Kit into HP c-Class blade chassis consolidates multiple 10/25/40 GbE uplinks into a unified fabric. The result: 40% higher aggregate throughput, 30% lower east-west VM latency, and centralized provisioning via HP OneView, driving faster VM deployments and streamlined operations.
High-Performance Computing Cluster Interconnect for Sub-Microsecond Latency
A scientific research facility deploying GPU-accelerated simulation workloads upgrades its HP BladeSystem with the 658250-B21-HP 6125G/XG Blade Switch Option Kit to deliver 10/40 GbE connectivity optimized for MPI traffic. This low-latency interconnect achieves sub-microsecond hop times and 200 Gbps bisection bandwidth, reducing job runtimes by 35% and accelerating time-to-insight for compute-intensive projects.
Scalable Campus Core Networking for Large-Scale IoT and Multimedia
A multi-campus university must support thousands of IoT sensors, 4K lecture streams, and VoIP endpoints with minimal downtime. By deploying the 658250-B21-HP 6125G/XG Blade Switch Option Kit as the campus core in HP blade chassis, the IT team achieves modular 10/25/40 GbE expansion, 99.99% network availability, and 20% lower CapEx through port consolidation, ensuring seamless connectivity and easy segmentation.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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| Depth | 12 inches | 12 inches | 12 in | 11 inches | 11 inches |
| Ethernet Technology | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Flash Memory | 64 MB | 64 MB | 64 MB | 64 MB | 64 MB |
| Form Factor | Rack-mount | Rack-mount | Rack-mount | Rack-mount | Rack-mount |
| Height | 1.75 inches | 1.75 inches | 1.75 in | 1.75 inches | 1 inch |
| Interface Ports | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| IOS | IP Services | IP Services | IP Services | IP Services | IP Services |
| Layer Supported | Layer 2 / Layer 3 | Layer 2 / Layer 3 | Layer 2 / Layer 3 | Layer 2 / Layer 3 | Layer 2 |
| Manageable | Managed | Managed | Managed | Managed | Managed |
| Manufacturer Part Number | R0P81A | Q6M28A | QK754C | 658250-B21 | C8R42A |
| Media Type Supported | Combo | Combo | Combo | Combo | Combo |
| Memory | 256 MB | 256 MB | 512 MB | 256 MB | 256 MB |
| Number of Downlink Ports | 24 Ports | 24 Ports | 24 Ports | 24 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+ | POE+ | POE+ |
| Port/Expansion Slot Details | 24 fixed Ethernet ports and 4 dedicated SFP uplink slots | 24 fixed Gigabit Ethernet ports with 4 SFP uplink slots | 4 x 10G SFP+ uplink slots, 24 x 10/100/1000 Ethernet ports | 24 x 10/100/1000 Ethernet ports with 4 SFP uplink slots | 24 Ethernet ports with 4 SFP uplink slots |
| Power Consumption | 65 W | 120 W | N/A | 75 W | 35 W |
| Power Source | Redundant Power Supply | AC Power Supply | AC Power Supply | AC Power Supply | AC Power Supply |
| Product Name | R0P81A High-Performance Stackable Switch | Q6M28A High-Performance Layer 2/3 Managed Switch | QK754C Enterprise Stackable Switch | Enterprise Stackable Managed Switch 658250-B21 | C8R42A Advanced Managed Switch |
| Product Type | Switch | Switch | Switch | Switch | Switch |
| Rack Units | 1 RU | 1 RU | 1 RU | 1 RU | 1 RU |
| Redundant Power Supply Supported | Yes | 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 | 128 Gbps | 128 Gbps | 128 Gbps | 256 Gbps |
| Switching Capacity with Stacking | 256 Gbps | 256 Gbps | 256 Gbps | 256 Gbps | 512 Gbps |
| Uplink Configuration | 10G | 10G | 10G | 10G | 10G |
| Weight | 15 lbs | 12 lbs | 6 lbs | 15 lbs | 12 lbs |
| Width | 17.5 inches | 17.5 inches | 17.5 in | 17.5 inches | 17.6 inches |
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Questions & Answers
Q
What is the HP 6125G/XG Blade Switch Option Kit (SKU: 658250-B21)?
A
The HP 6125G/XG Blade Switch Option Kit (658250-B21) is a modular network switch designed for HP ProLiant BL blade servers, offering fixed 10GbE and Gigabit Ethernet ports to optimize data center connectivity.
Q
Which HP blade server chassis is the 6125G/XG switch compatible with?
A
The HP 6125G/XG switch is compatible with HP BladeSystem c-Class enclosures, including c7000 and c3000 chassis loaded with ProLiant BL servers.
Q
How many ports and what speeds does the HP 6125G/XG provide?
A
The switch delivers eight fixed 10GbE X2 uplink ports plus sixteen fixed 1GbE RJ-45 downlink ports, enabling high-throughput connectivity for blade servers.
Q
Can the HP 6125G/XG switch support both copper and fiber cabling?
A
Yes, the X2 uplink ports support multimode and single-mode fiber transceivers, while the RJ-45 downlinks support standard copper Ethernet connections.
Q
What management interfaces are available on the HP 6125G/XG?
A
You can configure and monitor the switch via an embedded web GUI, CLI over serial or SSH, and SNMP v1/v2c/v3 for centralized network management.
Q
Does the 6125G/XG switch support advanced network features like VLANs and QoS?
A
Yes, it supports up to 4,094 VLANs, port-based VLAN tagging, and robust QoS with eight priority queues to ensure traffic prioritization.
Q
How do I install the HP 6125G/XG Blade Switch in my enclosure?
A
Slide the switch module into the designated interconnect bay of a powered-off c-Class chassis, secure the latch, then power on the chassis to auto-detect the switch.
Q
Can I stack or daisy-chain multiple HP 6125G/XG switches?
A
No, the 6125G/XG is designed for single-chassis deployment and does not support stacking; use HP Virtual Connect or external stacking solutions for multi-chassis scaling.
Q
Is the firmware on the HP 6125G/XG upgradable?
A
Yes, firmware updates can be applied through the web interface, CLI, or HP Onboard Administrator to ensure you have the latest features and security patches.
Q
What security features are built into the HP 6125G/XG?
A
The switch provides ACL-based packet filtering, RADIUS/TACACS+ authentication, SSH v2, SSL, and secure SNMP to safeguard management access and data traffic.
Q
How does the HP 6125G/XG improve network performance?
A
By offering 10GbE uplinks, non-blocking switching fabric, and hardware-based QoS, it reduces latency, boosts throughput, and prioritizes mission-critical traffic.
Q
What are the power and cooling requirements for the 6125G/XG?
A
The switch consumes up to 75 W under full load and relies on the chassis’s shared power and cooling infrastructure to maintain optimal operating temperatures.
Q
How can I troubleshoot common issues with the HP 6125G/XG?
A
Verify firmware versions, check LED status for port/link activity, review switch logs via CLI, and ensure proper transceiver compatibility to resolve typical faults.
Q
What warranty and support does HPE offer for this switch option kit?
A
HPE provides a three-year limited warranty with next-business-day parts replacement and optional ProCare support services for faster response and coverage.
Q
Where can I buy replacement modules or additional transceivers for the 6125G/XG?
A
Genuine HPE replacement modules and transceivers are available through HPE authorized resellers, the HPE Parts Store, or official HPE distribution channels.
Q
Does the HP 6125G/XG support link aggregation and network redundancy?
A
Yes, it supports up to eight LACP-based link aggregation groups and features spanning tree protocol (STP/RSTP/MSTP) for network resilience.
