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Charles Morton
5
Pass through module delivered consistent 10Gb Ethernet connectivity.
538113-B21
HP BLc 10GbE Pass Thru Mod Opt Kit
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538113-B21
- Description:
- HP BLc 10GbE Pass Thru Mod Opt Kit
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538113-B21 Overview
538113-B21 is a high-performance, rack-mount network switch engineered with a modular architecture that supports robust stacking and seamless scalability. It is designed to deliver consistent, reliable performance in demanding enterprise environments using a mix of AC power options with built-in redundancy, a wide array of port configurations, and industry-leading switching capabilities.
This switch integrates 10/100/1000 Ethernet interfaces with dedicated SFP uplink ports, enabling dynamic connectivity for applications ranging from campus networking to data center access. Its stacking support and optimized performance make it ideal for deployments requiring scalable bandwidth, low latency, and flexible power management tailored to modern network use cases.
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538113-B21 Specifications
- Product Type
- Switch
- Power Source
- Redundant Power Supply / AC Power Supply
- Layer Supported
- Layer 2
- Form Factor
- Rack-mount
- Power Consumption
- N/A
- Number of Ethernet Ports
- 24–48 Ports
- Number of Downlink Ports
- 48 Ports
- Manageable
- Managed
- Ethernet Technology
- 10/100/1000
- Media Type Supported
- Twisted Pair / Fiber / Combo
- Redundant Power Supply Supported
- Yes
- Manufacturer Part Number
- 538113-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
- N/A
- Flash Memory
- 64 MB
- Switching Capacity
- 128 Gbps
- Switching Capacity with Stacking
- 256 Gbps
- Product Name
- Cisco Catalyst 2960-X 48-Port POE+ Switch
- Height
- 1.73 inches
- Width
- 17.5 inches
- Depth
- 11.5 inches
- Weight
- 16 lbs
538113-B21 Use Case
High-Density Virtualized Infrastructure with 538113-B21 HP BLc 10GbE Pass Thru Mod Opt Kit
In large-scale VMware and Hyper-V blade clusters, the 538113-B21 HP BLc 10GbE Pass Thru Mod Opt Kit provides wire-speed 10GbE connectivity directly to each virtual host. Benefit: Eliminates software switching overhead, reduces network latency by up to 30%, and boosts VM density for mission-critical applications.
Accelerated Data Protection & DR Replication over 10GbE with HP 538113-B21 Pass-Thru Module
During data center consolidation and disaster recovery deployments, the 538113-B21 HP BLc 10GbE Pass Thru Mod Opt Kit enables dedicated 10GbE links for backup appliances and replication servers. Benefit: Achieves up to 50% faster nightly backups, lowers RPO/RTO, and strengthens business continuity without adding switch latency.
Low-Latency HPC & Analytics Fabric Using 538113-B21 HP BLc 10GbE Pass-Thru Module
In high-performance computing and big data analytics clusters, the HP 538113-B21 Pass Thru Mod Opt Kit delivers direct, wire-speed 10GbE for MPI and RDMA traffic between compute blades. Benefit: Cuts inter-node latency by 20%, accelerates job throughput, and maximizes processing efficiency for AI, machine learning, and scientific simulations.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
 538113-B21 |  C8R45B |  R0P82A |  BK763A |  834978-B22 | |
|---|---|---|---|---|---|
| Depth | 11.5 inches | 14 inches | 12 inches | 12 inches | 18 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 | 256 MB |
| Form Factor | Rack-mount | Rack-mount | Rack-mount | Rack-mount | Rack-mount |
| Height | 1.73 inches | 1 inches | 1.75 inches | 1.75 inches | 1 inches |
| IOS | LAN Base | IP Services | LAN Base | 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 2 / Layer 3 | Layer 2 / Layer 3 | Layer 2 / Layer 3 | Layer 3 |
| Manageable | Managed | Managed | Managed | Managed | Managed |
| Manufacturer Part Number | 538113-B21 | C8R45B | R0P82A | BK763A | 834978-B22 |
| Media Type Supported | Twisted Pair / Fiber / Combo | Twisted Pair / Fiber / Combo | Combo | Combo | Combo |
| Memory | 256 MB | 256 MB | 256 MB | 256 MB | 512 MB |
| Number of Downlink Ports | 48 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 | N/A | 4 fixed SFP slots and 24 fixed Ethernet ports | 24 Ethernet ports, 4 SFP uplink slots | 24 Ethernet ports with 4 SFP uplink slots | 2 expansion slots |
| Power Consumption | N/A | N/A | 250 W | 85W | N/A |
| Power Source | Redundant Power Supply / AC Power Supply | AC Power Supply with Redundancy | Redundant Power Supply / AC Power Supply | AC Power Supply | AC Power Supply |
| Product Name | Cisco Catalyst 2960-X 48-Port POE+ Switch | C8R45B Business-Class Managed Switch | R0P82A High Performance Switch | BK763A High-Performance Enterprise Switch | 834978-B22 High-Performance Enterprise 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 | 128 Gbps |
| Switching Capacity with Stacking | 256 Gbps | 256 Gbps | 256 Gbps | 256 Gbps | 256 Gbps |
| Uplink Configuration | 1G | 10G | 1G / 10G | 10G | 10G |
| Weight | 16 lbs | 8 lbs | 15 lbs | 12 lbs | 10 lbs |
| Width | 17.5 inches | 17 inches | 17.5 inches | 17.5 inches | 17.5 inches |
Reviews & Ratings
I
Ian Woolf
4
Easy integration into BladeSystem enclosure.
V
Victor Palmer
5
Reliable for simple blade networking needs.
N
Neil Carter
3
No configuration issues during deployment.
P
Peter Holloway
4
Predictable performance and stability.
Questions & Answers
What is the HP BLc 10GbE Pass Thru Module Optional Kit (SKU 538113-B21)?
The HP BLc 10GbE Pass Thru Module Optional Kit (538113-B21) is a mezzanine network module for HP BladeSystem c-Class that delivers direct 10GbE connectivity from blade servers to external switches without internal switching.
How many 10GbE ports does the 538113-B21 module provide?
The module provides sixteen external SFP+ 10GbE ports, enabling direct Ethernet connections for up to eight dual-port mezzanine adapters.
Which HP chassis is the BLc 10GbE Pass Thru Module compatible with?
It is compatible with HP BladeSystem c7000 and c3000 enclosures that support full-height or half-height blade server slots.
Do I need an external switch to use the 10GbE pass-thru module?
Yes. This pass-thru module requires external Ethernet switches or routers to manage and switch network traffic because it offers no internal switching functions.