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538113-B21
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- HP BLc 10GbE Pass Thru Mod Opt Kit
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3 Year Extended Warranty
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Smaller shipments go via DHL or FedEx Express — delivered worldwide in approximately 3 business days.
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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
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.
What is the price of 538113-B21?
Pricing for 538113-B21 is available on request. Get immediate quote or for exclusive discounts, opt for bulk quotation for 538113-B21.
Explore more options from Switches or explore other Hpe products.
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
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|---|---|---|---|---|---|
| Depth | 12 inches | 12 inches | 11.5 inches | 14 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 | 1.75 inches | 1.75 inches | 1.73 inches | 1 inches | 1 inches |
| Interface Ports | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| IOS | LAN Base | LAN Base | LAN Base | IP Services | IP Services |
| Layer Supported | Layer 2 / Layer 3 | Layer 2 / Layer 3 | Layer 2 | Layer 2 / Layer 3 | Layer 3 |
| Manageable | Managed | Managed | Managed | Managed | Managed |
| Manufacturer Part Number | R0P82A | BK763A | 538113-B21 | C8R45B | 834978-B22 |
| Media Type Supported | Combo | Combo | Twisted Pair / Fiber / Combo | Twisted Pair / Fiber / Combo | Combo |
| Memory | 256 MB | 256 MB | 256 MB | 256 MB | 512 MB |
| Number of Downlink Ports | 24 Ports | 24 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 | 24 Ethernet ports, 4 SFP uplink slots | 24 Ethernet ports with 4 SFP uplink slots | N/A | 4 fixed SFP slots and 24 fixed Ethernet ports | 2 expansion slots |
| Power Consumption | 250 W | 85W | N/A | N/A | N/A |
| Power Source | Redundant Power Supply / AC Power Supply | AC Power Supply | Redundant Power Supply / AC Power Supply | AC Power Supply with Redundancy | AC Power Supply |
| Product Name | R0P82A High Performance Switch | BK763A High-Performance Enterprise Switch | Cisco Catalyst 2960-X 48-Port POE+ Switch | C8R45B Business-Class Managed 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 | 10G | 1G | 10G | 10G |
| Weight | 15 lbs | 12 lbs | 16 lbs | 8 lbs | 10 lbs |
| Width | 17.5 inches | 17.5 inches | 17.5 inches | 17 inches | 17.5 inches |
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Questions & Answers
Q
What is the HP BLc 10GbE Pass Thru Module Optional Kit (SKU 538113-B21)?
A
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.
Q
How many 10GbE ports does the 538113-B21 module provide?
A
The module provides sixteen external SFP+ 10GbE ports, enabling direct Ethernet connections for up to eight dual-port mezzanine adapters.
Q
Which HP chassis is the BLc 10GbE Pass Thru Module compatible with?
A
It is compatible with HP BladeSystem c7000 and c3000 enclosures that support full-height or half-height blade server slots.
Q
Do I need an external switch to use the 10GbE pass-thru module?
A
Yes. This pass-thru module requires external Ethernet switches or routers to manage and switch network traffic because it offers no internal switching functions.
Q
Can I mix this module with HP Virtual Connect modules?
A
Yes. You can install the pass-thru module alongside HP Virtual Connect modules in different interconnect bays, but each bay can host only one module type.
Q
How do I install the 538113-B21 pass-thru module?
A
Slide the module into a supported interconnect bay in the c-Class chassis until it clicks, then connect SFP+ cables to your external switches and power on the enclosure.
Q
What cable types are supported by the HP BLc 10GbE Pass Thru Module?
A
The module supports standard SFP+ fiber transceivers (SR, LR) and direct-attach copper (DAC) cables for distances up to 10 meters.
Q
What is the maximum throughput per port?
A
Each SFP+ port supports full-duplex 10 Gbps throughput, delivering up to 20 Gbps aggregate traffic per port.
Q
Is the pass-thru module hot-swappable?
A
No. HP does not support hot-swapping of interconnect modules; you must power down affected blades or the entire enclosure before removal or insertion.
Q
Which operating systems are supported with the 10GbE pass-thru module?
A
Any OS supported on HP blade servers that includes 10GbE SFP+ driver support, such as Windows Server, Red Hat Enterprise Linux, SUSE Linux Enterprise Server and VMware ESXi.
Q
Where can I download firmware updates and drivers?
A
Firmware and driver packages are available on the HPE Support Center website under the product’s download section for SKU 538113-B21.
Q
What troubleshooting steps address port link issues?
A
Verify SFP+ module seating, replace faulty transceivers or DAC cables, confirm correct interconnect bay mapping in Onboard Administrator, and update firmware to the latest version.
Q
What is the warranty for the HP BLc 10GbE Pass Thru Module?
A
HP provides a one-year limited hardware warranty with worldwide parts exchange; extended support options are available via HPE Care Packs.
Q
How does the pass-thru module differ from an integrated switch module?
A
Unlike switch modules, the pass-thru module simply forwards each server’s NIC signals directly to external ports without VLAN, QoS or packet buffering.
Q
What power does the 538113-B21 module consume?
A
The module consumes approximately 25 watts under full load; ensure adequate chassis power and cooling capacity when planning deployments.
Q
Can I monitor port status and performance?
A
Port link status and basic diagnostics are viewable through the HP Onboard Administrator, but detailed statistics require external switch management tools.
