638526 B21 HPE Expansion Module
If you need a large quantity of 638526-B21 product - call us at +1 (718) 766 5269 or request a quote at live chat and our sales manager will contact you shortly.
9 of 16

Why HPE 638526-B21 Virtual Connect C-Class is the best?

Check Availability
Part Number#: 638526-B21
Contact us for a price
3% Discount on Checkout

Short Description:
638526-B21 Virtual Connect C-Class Small Form-Factor Pluggable Plus (SFP+) Blade System Flex-10/10D 10 Ports Networking Expansion Module | Made by HPE | New Bulk Pack

Interface Types of This Product: Expansion Module 10 Port

Product Condition:
New Bulk Pack
Warranty provided by ALLHDD.COM:
30 Days
We are giving specifications below, why one should consider procuring HPE 10 Port Expansion Module Networking features, a general overview, description, performance specification, relevant images, a competitive price infographic, and technical information about the 638526-B21 model with compatibility.

Details Information

The HPE Virtual Connect C-Class BladeSystem Flex-10/10D Module, also known as the 638526-B21, is a network device that allows for virtualization of network connections in a blade server environment. It is designed for use with HPE C-Class BladeSystem enclosures.

The Flex-10/10D module allows for the creation of up to four virtual NICs (vNICs) per physical NIC, providing increased flexibility and scalability in network connections. It also allows for the creation of virtual NICs and virtual HBAs, which can be assigned to different blade servers within the enclosure.

The module supports 10 GbE and 1 GbE connections and has a maximum data transfer rate of 20 Gb/s. It also supports various network protocols including IPv4, IPv6, and Fibre Channel over Ethernet (FCoE).

In terms of management, the module can be managed through the HPE Virtual Connect Manager software, which allows for the creation and management of virtual NICs and virtual HBAs. It also supports SNMP and SMASH CLP for remote management.

Data Protection and Security

The HPE Virtual Connect C-Class BladeSystem Flex-10/10D Module Data Protection, also known as part number 638526-B21, is a component of the HPE Virtual Connect C-Class BladeSystem. This module provides data protection for the Flex-10/10D Ethernet module, which is a component of the BladeSystem that connects servers to the network.

The Flex-10/10D module allows for 10 Gigabit Ethernet connectivity, and the data protection feature ensures that data is protected and can be recovered in the event of a failure or outage. This includes features such as data redundancy and failover capabilities, as well as the ability to quickly restore data after a failure.

Additionally, the HPE Virtual Connect C-Class BladeSystem Flex-10/10D Module Data Protection is designed to be easy to use and manage, with a user-friendly interface and simple setup process. It also integrates with other HPE Virtual Connect components, making it easy to manage and maintain the entire BladeSystem.

General Compatibility

The HPE Virtual Connect C-Class BladeSystem Flex-10/10D Module (638526-B21) is a component designed for use with HPE's C-Class BladeSystem servers. It is a Flex-10/10D module, which means it is capable of providing 10 Gb Ethernet connections to servers within the BladeSystem.

The module is compatible with a variety of C-Class BladeSystem servers, including the HPE ProLiant BL460c, BL490c, BL660c, and BL870c. Additionally, it is also compatible with the HPE Integrity BL860c and BL870c servers.

It can be used in conjunction with other HPE Virtual Connect components, such as the HPE Virtual Connect Flex-10/10D Enclosure and the HPE Virtual Connect FlexFabric-20/40 F8 Module, to create a flexible and scalable network infrastructure within the BladeSystem.

In summary, the HPE Virtual Connect C-Class BladeSystem Flex-10/10D Module (638526-B21) is a component that allows for 10 Gb Ethernet connections to servers within the HPE C-Class BladeSystem, and is compatible with a variety of C-Class BladeSystem servers and other HPE Virtual Connect components.

General Information 638526-B21 HPE Virtual Connect C-Class

Manufacturer: HPE

MPN: 638526-B21

Spare Part Number: 639852-001

Type: Networking

Switch Type: 10 Port

Product Line Flex

SKU: 638526-B21

Product Name Virtual Connect Flex-10/10d Module

Product Type Switching Module

Technical Information

Application/Usage Switching Network

Application/Usage Data Networking

Application/Usage Optical Network

Connectivity Technology: Wired

Data Link Protocol: 10 Gige

Data Transfer Rate: 10 Gb/s

Expansion Slots: 8 (total) / 8 (free) x SFP+

I/O Expansions
Expansion Slots 10 X Sfp+

Dimensions & Weight
Width: 13.9 inch
Depth : 10.6 inch
Height : 4.8 inch
Weight : 1 lbs

Management & Protocols
Management È Embedded Virtual Connect Manager
Web-Based Management
Command Line Interface (Cli)
Snmp V1/2

About New Bulk Pack Products

New Bulk Pack products come with clamshell boxes and do not have any manufacturer warranty. Many times manufacturers disassemble whole units to use parts or pulled from a new system. Typically, this product doesn't come with software or instructions unless indicated and no Manufacturer’s genuine warranty. You can take note these are not brand new products.

For all your expansion module needs, we've got you covered with high-performance devices that increase functional capability and ease business processes.

You can talk to any of our staff and consult on what would be the best way forward when getting an expansion module to complement and enhance existing infrastructure, meet your immediate and future needs.

We have hardware level 12 with firmware 3.0 or higher modules that allow for the installation of up to 14 expansion modules below the base module for resilient performance. Expansion modules connect to the base module using USB Type-A connectors. That's not all, we have hardware level 11 and lower that supports up to 9 expansion modules.

With an expansion module, you get additional cartridge storage as well as tape drive capacity. We have expansion modules that contain up to two drives and two power supplies. You can choose to have the expansion module with tape drives and power supply installed so that it makes setup easier from your end. Expansion modules will need a power supply only if you install a tape drive in it. A single power supply can actually power two drives. However, you can add a second power supply for redundancy purposes. Without a tape drive, the expansion module is powered via the USB cable connected to the base module.

Expansion modules require 2U rack space and will be shipped with the necessary mounting hardware used to secure it to the rack.

The top features of the expansion modules we've listed include:

  • High-resolution LCD screens of up to 5" with backlight for a vibrant visual experience and ease of use. The expansion modules have programmable line keys ensuring that the interface is intuitive and interactive.
  • Straightforward setup to facilitate easy installation.
  • Availability of a wide range of custom configurations
  • Advanced call handling and contact management capabilities to help increase productivity.
  • XML browser functionality
  • Compatibility across systems which helps to leverage on existing IT infrastructure investment. All the expansion modules we've made available will help to enhance your existing desktop solutions.
  • Seamless fusion with planar and fiber technology
  • Compatibility with phone models such as SIP-T27P and SIP-T29G helping to expand functionality.
  • Availability of color icons that enhance the visual experience for users. There are color-coded independent actionable control keys that facilitate fast switching between pages.
  • Ability to link together a maximum of six phone systems and up to two expansion modules from a single host phone.
  • Support for up to 3 modules on a daisy-chain
  • Reduced excess loss and PDL
  • Support for advanced call functions including call forwarding, call transfers, multi-person conferencing, call pickup, LDAP, speed dial, and BFL list.
  • Shipped with a stand that has two adjustable angles

You can find almost every module option in our catalog, we have modules with different numbers of ports, from 1-port options to 50- and 90-port options, you can also check out our 20 Gigabit, 48 Gigabit, and 100 Gigabit expansion modules. Browse through our categories to find the best option for your needs.

All expansion modules make for ideal solutions for administrative assistants, receptionists, and contact center employees due to the ability to easily manage large call volumes and to monitor a large number of contacts.

Here, you can check more available conditions of your desired product 638526-B21 at a competitive price. We are trying our best to meet your needs on the enterprise-level computer, server, data centre, and networking hardware. You are welcome to ask our live chat or get live representative support over the phone.


Please choose your location for calculate shipping cost.


ALLHDD guarantees that the products will not have defects in material that will affect the product's functionality during the Standard Warranty Period. The warranty period starts when the merchandise/items from our warehouse.

What does ALLHDD.Com warranty cover?

30-days to 3 years warranty:

Replacement or refund. In the case of material defects, we will try to replace the product first. The product will be replaced before the expiration of the original warranty. For any failure of hardware, if we cannot process the replacement of the product(s)/model(s), we will refund the original selling/invoiced price. The shipping costs and sales tax, if any, are non-refundable. ALLHDD retains the right to decide whether the item(s) will process for replacement or refund.

What is not covered by our warranty?

The reason why our warranty does not cover any problem caused by the following conditions:

(a) misuse of hardware; accidental damage; carelessness product(s) damage; shock; temperature beyond the specification of any product; faulty installation; operation; modification of goods;

(b) any misuse outside the instructions in the user manual for any specific product;

(c) damaged caused by other hardware or equipment. The warranty will void if the item is returned with physical damage, damage to the retail box, removed from the box, counterfeit labels/labelled by them, or any modifications of internal and external covers. Data loss or damages to any other equipment we do not cover by our offered warranty.

What is the Manufacturer/Brand Warranty?

In general, a manufacturer's warranty service/support is a written guarantee to the buyer of a product. Its terms assure the replacement or repair of the product, if necessary, within a specified period after the purchase (2-5 years depending on the brand/manufacturer). It is typically included in the price of the product. Products are brand new and sealed and the original manufacturer box is complete with the Manufacturer's genuine warranty. For most of the brand new/retail products that come with the manual and box, exceptions may apply (i.e., Cisco, Juniper Networks).

For the server parts (i.e., Dell, HPE) to get Full coverage of the warranty server must have a full 3- 5 years warranty. However, ALLHDD.COM will cover the warranty duration if any Manufacturer doesn't support the advertised warranty and there is no refund for those.
Final Sale items are non-returnable/refundable in any situation. Any question? please ask our team before the shipment.

Important notes:

We can provide additional warranty service/support for any product you purchase from us if you need additional warranty coverage before finalizing the order from ALLHDD.Com. You need to ask in live chat/help or call us for more information.

Individual product warranty mentioned on each item product description page/detail page.

Free Technical support on purchased items, our expert consultancy over the phone, by email, by live chat, or by remote login.


Shipping Options and Estimated Delivery Time

UPS Shipping Options:

FREE UPS® Ground (Free shipping to all orders for 48 states!)
Estimated delivery time: 4-7 business days

UPS 3 Day Select®
Estimated delivery time: 3 business days

UPS 2nd Day Air®
Estimated delivery time: 1-2 business days, Delivery by 10:30 AM or 2:00 PM

UPS Next Day Air® Standard Overnight
Estimated delivery time: Overnight 2-5 PM, Standard Overnight Delivery.

UPS Next Day Air® - Priority Overnight
Estimated delivery time: Overnight Delivery (Next Business Day) Delivery by 10:30 AM or 12:00 PM

UPS Next Day Air® First Overnight - Early A.M
Estimated delivery time: Overnight 8:00 AM, Early morning, overnight delivery for your time-critical shipments.

UPS® First Overnight - Saturday
Estimated delivery time: Overnight 8:30 AM – Saturday

FedEx Shipping Options:

FedEx Ground®
Estimated delivery time: (4–7 business days in the contiguous 48 states)
*For residential delivery via FedEx Ground use FedEx Home Delivery®
Estimated delivery time: 4−7 business days, based on the distance to the destination.

FedEx Express Saver®
Estimated delivery time: 3 business days (by 4:30 PM to U.S. businesses; by 8:00 PM to residences)
Available throughout all 50 states (except Hawaii and Alaska)

FedEx 2Day®
Estimated delivery time: 2 business days (by 4:30 PM to U.S. businesses; by 8:00 PM to residences)
Available throughout all 50 states

FedEx Standard Overnight®
Estimated delivery time: Next-business-day (by 4:30 PM to U.S. businesses and by 8:00 PM to residences)
Available throughout all 50 states (Hawaii is outbound only)

FedEx Priority Overnight®
Estimated delivery time: Next-business-day (by 10:30 PM to U.S. businesses, noon to most residences)
Available throughout all 50 states

FedEx First Overnight®
Estimated delivery time: Next-business-day (by 8:30 or 9 AM to most areas)
Available throughout all 50 states

Worldwide Shipping Options:

UPS®/FedEx® International Economy

Estimated delivery time: 4-7 business days

UPS®/FedEx® International Priority

Estimated delivery time: 2-4 business days

UPS®/FedEx® Ground Shipping Canada

Estimated delivery time: 5-8 business days

Important notes:

  • The processing of orders with Ground Shipping can take up to 24-48 hours. But we try to process all orders the same day.
  • We are not responsible for weather problems that may affect the delivery of goods by carriers. We cannot guarantee the exact delivery time, regardless of the carriers' claims.
  • If you have any specific delivery time requirements, please contact our customer support and someone from our customer service team will be able to help you.
  • You can estimate the shipping cost from the products detail page, also available on the checkout page
  • The shipping cost depends on box dimensions, weight, and zip/postal code
  • To get a FedEx® delivery service you need to mention it on the checkout page notebox.
  • For urgent shipments, please contact our customer service.
  • Shipping cut off 4:00 PM (Monday-Friday) and available blind drop shipment.