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Switch Modules: Efficient Network Expansion for Professional IT Environments

Switch modules are essential components of modern corporate networks and offer B2B customers a flexible way to expand the performance, functionality, and scalability of their network infrastructure in a targeted manner. They are used wherever standard switches reach their limits or where there are specific requirements for additional ports, bandwidth, or network protocols.

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Cisco 2D-X6816-10T-2T
Cat 6500 16P 10GbE 10GBASE-T module w/DFC4 S w/2D barcode
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BTI Systems Ltd. BT7C21AA
SA-810 4X FE/GE SFP MODULE
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APC SYSW40KF
SYMMETRA PX STATIC SWITCH MODULE, 208V
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Cisco NC55-MOD-A-SE-S
NCS 5500 12X10, 2X40 and 2XMPA Line Card Scale
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Extreme 52011
Extreme Networks Black Diamond F48Ti 52011 Modul
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EMC PB-DCX6-48P32G
EMC Connectrix Switching Blade - Switch 48 x 32Gb Fibre Channel Plugin-Modul mit 48x 32 Gbps SWL SFP+ transceiver
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Cisco WS-X4612-SFP-E
Catalyst 4500 E-Series 12-Port GE (SFP)
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Cisco NC-57-MOD-S
NCS 5700 8x50GE, 2x400GE, 2xMPA Base Macsec Line Card FCM
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HPE J9666A
HP Adv Svcs zl Mod w/Win Svr 2008 R2 Std
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Cisco WS-X5156
Catalyst 5000 ATM OC-3 LANE Module Dual PHY (UTP, RJ-45)
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Extreme STL2006-0850
S-Series S140 Class I/O Module 48 Ports 10/100/1000BASE-TX via RJ45 with PoE+ (802.3at) and 2 ports 40GBASE-X Ethernet via QSFP+ (Used in S3/S4/S6/S8), EEE, MACsec (1Gb ports and 40Gb ports running in 10Gb mode)
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Juniper SRX5K-SCB4-R
SRX5K SCB4, Switch Control Board, Redundant option
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Juniper MPC5E-100G10G
MPC5E-100G10G MPC, price includes full scale L2/L2.5, reduced scale L3 features, up to 2M routes in the FIB, up to 6M routes in theRIB, and up to 32 L3VPN instances per card, requires optics sold separately.
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Cisco WS-F5531
NetFlow Feature Card II (Upgrade)
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Juniper QFX10016-SF
QFX10016 Switch Fabric Card, Spare
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Arista 7500R3K-36CQ-LC
7500R3 Series 36 port 100GbE QSFP100, large routes, wirespeed line card
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Cisco NC57-MOD-S
NCS 5700 8x50GE, 2x400GE, 2xMPA Base Macsec Line Card
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APC SYSW80KF
Symmetra PX 80kW Static Switch Module, 208V
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Extreme EC8404006-E6GS
8418XTQ ETHERNET SWITCH MODULE - 16 PORT 1/10G BASE-T and 2 PORT 40G QSFP+. PLUGGABLE TRANSCEIVERS SOLD SEPARATELY. GSA VERSION
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HPE JE925A
HP 4-port 1000Base-LX 4900 Module
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Avaya DS1404078-E5
Ethernet Routing Switch 8348TX-PWR Module. 48 port autosensing 10BASE-T/100BASE-TX module with Power over Ethernet (PoE) support on all ports.
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Extreme SG4101-0248G
S-IOM 48 Port SFP w1 Option Slot (TAA)
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Nortel 8393SF
Nortel Passport 8393SF Ethernet Switch Module
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Nortel SR0000015E5
24-port 10/100 Fast Ethernet Layer2/3 switch
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What is a switch module?

A switch module is a plug-in extension for modular network switches. Switch modules are inserted directly into designated slots and expand the functionality of the switch with additional ports, bandwidths, or interfaces. This allows networks to be dynamically adapted to new requirements without the need for expensive new purchases.

Modern switch modules offer much more than just additional ports. Via browser-based interfaces, you can

  • access switch workflows
  • switch devices between different operating modes
  • use extended performance and frequency ranges

Switching between multi-standard and export mode is done by pressing the PTT button when switching on. Switching off and on again resets the device to standard mode.


What are the advantages of switch modules?

Switch modules offer companies a variety of advantages that go far beyond simply expanding network capacity. Benefit from:

  • Increased port capacity: Additional ports for growing networks without having to purchase new switches.
  • High bandwidth: Modules with 10G, 40G, or 100G enable the connection of bandwidth-intensive applications.
  • Advanced network protocols: Support for modern protocols and functions, e.g., for quality of service (QoS), network segmentation, or security mechanisms.
  • Flexible adaptation: Scalability through easy retrofitting – ideal for companies with dynamic requirements.
  • Hot-swappable: Replacement possible during operation without interrupting network traffic – maximum availability.
  • Future-proof: Investment protection through modular architecture and compatibility with new technologies.


Which manufacturers are recommended for purchasing switch modules?

Some switch module manufacturers have proven themselves particularly reliable and offer innovative, high-quality solutions, e.g.: 

  • H3C: H3C is known for powerful interface modules that provide security, wireless management, and high reliability directly in the network. The H3C S7500E series offers modular switches with high port density, hot-swap capability, and comprehensive management and security features.
  • Cisco: With the Carrier Edge card and other modules, Cisco offers powerful solutions for demanding enterprise networks. The modules are known for their reliability, compatibility, and easy integration into existing infrastructures.
  • Other manufacturers: Vendors such as HPE, Juniper, and Netgear also offer modular switches and matching expansion modules for different requirements.


What should B2B customers look for when purchasing switch modules?

When purchasing switch modules, B2B customers should consider the following criteria to ensure optimal integration and smooth operation in the corporate network:

  • Compatibility: The module must be compatible with the switch model used.
  • Functionality: Additional ports, special protocols, or management functions.
  • Reliability: Refurbished modules offer quality and high availability.
  • Scalability: Option to expand network capacity later.
  • Service and support: Manufacturer support and maintenance options for uninterrupted operation.

Our maintenance and service offerings provide a solution for your IT infrastructure. With our CleverCare packages, our experts are personally available to assist you in finding appropriate and rapid solutions.



H2 Buy switch modules: new, used, and refurbished at it market 

At it-market, you can expect a diverse selection of switch modules—available for a wide range of bandwidths, interfaces, and applications. Whether new, used, or professionally refurbished, you are guaranteed to find the right switch module to optimally expand your network infrastructure. Our refurbished switch modules in particular offer excellent value for money. 

We also offer: 

  • 3-year warranty for companies
  • Up to 2,500€ buyer protection 
  • Short delivery times 

Do you have any questions? Our sales team will be happy to answer any questions you may have about IT hardware and IT remarketing.