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Dylan Stewart
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Blade switch option delivered strong access layer performance.
787635-B21
6127XLG BLADE SWITCH OPT KIT PL=UZ
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Name:
787635-B21
- Description:
- 6127XLG BLADE SWITCH OPT KIT PL=UZ
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- Brand:
- Hpe
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787635-B21 Overview
787635-B21 is built on a robust modular architecture engineered to support enterprise-grade performance and seamless scalability. Designed for high-demand environments, this switch integrates flexible stacking capabilities, multiple redundancy power options, and a variety of port configurations to enhance network reliability and operational efficiency.
The 787635-B21 delivers exceptional performance with Layer 2 and Layer 3 support, optimized for both data center and branch office deployments. Its versatile design, featuring a balanced mix of Ethernet and SFP ports along with advanced uplink options and POE+ support, makes it ideal for mission-critical applications that require scalable solutions and streamlined network management.
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787635-B21 Specifications
- Product Type
- Switch
- Power Source
- Redundant Power Supply / AC Power Supply
- Layer Supported
- Layer 2 / Layer 3
- Form Factor
- Rack-mount
- Power Consumption
- 350 W
- Number of Ethernet Ports
- 24–48 Ports
- Number of Downlink Ports
- 24 Ports
- Manageable
- Managed
- Ethernet Technology
- 10/100/1000
- Media Type Supported
- Twisted Pair / Fiber / Combo
- Redundant Power Supply Supported
- Yes
- Manufacturer Part Number
- 787635-B21
- Uplink Configuration
- 10G
- IOS
- IP Services
- POE Support
- POE+
- SFP Ports
- 4 SFP Ports
- Memory
- 512 MB
- Rack Units
- 1 RU
- Interface Ports
- 10/100/1000
- Port/Expansion Slot Details
- 2 expansion slots available
- Flash Memory
- 256 MB
- Switching Capacity
- 80 Gbps
- Switching Capacity with Stacking
- 160 Gbps
- Product Name
- Enterprise Stackable Switch 787635-B21
- Height
- 1.75 inches
- Width
- 17.5 inches
- Depth
- 11 inches
- Weight
- 12 lbs
787635-B21 Use Case
High-Density Data Center Core Switch Expansion
In a hyperscale data center experiencing rapid VM and container growth, network architects integrate the 787635-B21-6127XLG BLADE SWITCH OPT KIT PL=UZ into modular chassis to scale port density from 48 to 96 10/25GbE ports per line card. This deployment delivers ultra-high throughput, minimizes chassis footprint, and supports non-stop fabric upgrades, resulting in 40% higher bandwidth per rack and a 30% reduction in power and cooling costs.
Ultra-Low-Latency Trading Network Upgrade
A global financial institution retrofits its exchange gateway switches with 787635-B21-6127XLG BLADE SWITCH OPT KIT PL=UZ modules to enable cut-through switching and 100GbE trunking across multi-tenant trading pods. The solution slashes per-hop latency by 200 nanoseconds, ensures deterministic packet delivery, and boosts transaction throughput by 15%, directly improving trade execution speeds and compliance with FINRA latency standards.
Enterprise Campus Virtualization and Security Segmentation
A multinational manufacturing firm deploys 787635-B21-6127XLG BLADE SWITCH OPT KIT PL=UZ in its modular edge switches to deliver 25GbE links and VXLAN overlay support for segmented IoT, VoIP, and guest networks. This configuration streamlines zero-trust micro-segmentation, reduces VLAN sprawl, and automates policy enforcement across 5,000 endpoints—yielding a 50% faster time-to-service for new site rollouts and enhancing overall network security posture.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
 787635-B21 |  Q0U58B |  R0P79A |  Q6M28A |  QW938B | |
|---|---|---|---|---|---|
| Depth | 11 inches | 18 inches | 12 inches | 12 inches | 12 inches |
| Ethernet Technology | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Flash Memory | 256 MB | 64 MB | 256 MB | 64 MB | 64 MB |
| Form Factor | Rack-mount | Rack-mount | Rack-mount | Rack-mount | Rack-mount |
| Height | 1.75 inches | 1 inches | 1.75 inches | 1.75 inches | 1 inches |
| IOS | IP Services | IP Services | IP Services | IP Services | 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 | Layer 2 / Layer 3 |
| Manageable | Managed | Managed | Managed | Managed | Managed |
| Manufacturer Part Number | 787635-B21 | Q0U58B | R0P79A | Q6M28A | QW938B |
| Media Type Supported | Twisted Pair / Fiber / Combo | Twisted Pair / Fiber / Combo | Twisted Pair / Fiber / Combo | Combo | Twisted Pair / Fiber |
| Memory | 512 MB | 256 MB | 512 MB | 256 MB | 256 MB |
| Number of Downlink Ports | 24 Ports | 48 Ports | 48 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 | 2 expansion slots available | N/A | 2 expansion slots for modular interfaces | 24 fixed Gigabit Ethernet ports with 4 SFP uplink slots | 24 Ethernet ports with 4 SFP slots for uplink |
| Power Consumption | 350 W | 120 W | 150 W | 120 W | 85 W |
| Power Source | Redundant Power Supply / AC Power Supply | AC Power Supply | Redundant Power Supply / AC Power Supply | AC Power Supply | AC Power Supply |
| Product Name | Enterprise Stackable Switch 787635-B21 | Q0U58B Enterprise Layer 3 Switch | R0P79A High Performance Stackable Switch | Q6M28A High-Performance Layer 2/3 Managed Switch | Enterprise Layer 2/3 Switch QW938B |
| Product Type | Switch | Layer 3 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 | 24 SFP Ports | 4 SFP Ports | 4 SFP Ports |
| Switching Capacity | 80 Gbps | 320 Gbps | 200 Gbps | 128 Gbps | 120 Gbps |
| Switching Capacity with Stacking | 160 Gbps | 640 Gbps | 400 Gbps | 256 Gbps | 240 Gbps |
| Uplink Configuration | 10G | 10G | 10G | 10G | 10G |
| Weight | 12 lbs | 15 lbs | 15 lbs | 12 lbs | 15 lbs |
| Width | 17.5 inches | 17 inches | 17.5 inches | 17.5 inches | 17 inches |
Reviews & Ratings
H
Henry Wallace
4
Stable operation under mixed workloads.
V
Victor Linton
5
Simple integration into BladeSystem.
M
Marcus Bell
3
Reliable switching for blade environments.
P
Peter Hume
4
Consistent and dependable.
Questions & Answers
What is the HP 6127XLG Blade Switch Option Kit (SKU: 787635-B21)?
The HP 6127XLG Blade Switch Option Kit (SKU: 787635-B21) is a high-performance Ethernet switch module designed for HP BladeSystem c-Class enclosures, delivering advanced network connectivity and management.
Which HP BladeSystem enclosures support the 6127XLG switch kit?
The 6127XLG switch kit is compatible with all HP BladeSystem c3000 and c7000 enclosures equipped with FlexFabric or Virtual Connect interconnect bays.
How many ports does the 6127XLG Blade Switch offer?
The 6127XLG switch features sixteen 10GbE SFP+ ports, enabling high-throughput connectivity and low-latency performance.
What data throughput can I expect from this switch?
With sixteen 10GbE ports, the 6127XLG delivers up to 320 Gbps of aggregate bandwidth, ensuring consistent, line-rate performance for demanding workloads.