Transceivers: Modular connection solutions for your network
Transceivers are key components of modern network technology - they enable flexible data transmission via copper or fiber optics and can be integrated directly into switches, routers, or firewalls. With the right transceiver modules, you can expand your infrastructure with Gigabit or high-speed connections - exactly as needed.
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100Mbps 100Base-FX Multi-mode Fiber 2km 1310nm Duplex LC Connector SFP Transceiver Module, compatible
SFP 1000Base-SX Gigabit Ethernet Optics, 850nm for upto 550m transmission on MMF
10.71G Optical Transponder(-19dBm~0dBm,1550nm,800ps/nm,-1dBm~2dBm,192.90THz,LC/PC), compatible
10G CWDM XFP, 8-channel using C-Band, 70km reach, 1611nm for 80 km transmission on SMF, compatible
NVIDIA optical transceiver, Ethernet 800Gb/s, 2x400Gb/s DR4, twin port OSFP, 2xMPO12 APC, 1310 nm single mode fiber, up to 500 m, finned top
Mellanox Passive Copper cable, ETH, up to 25Gb/s, SFP28, 1m, Black, 30AWG, CA-N
Palo Alto Networks PAN-XFP-SR 10GBase-SR XFP Transceiver (MMF, 850nm, 300m, LC, DOM), compatible
Allied Telesis SP10BD40/I-13 - 10 Gigabit BiDi SFP+ Optical Transceiver - Single-Mode Fiber, Simplex LC, 1330 nm TX / 1270 nm RX, Up to 40 km, Industrial Temperature Range (-40 to +85 C) - compatible
LANCOM SFP-SX-LC1 1000BASE-SX-SFP module for connecting to SFP ports on LANCOM switches and routers, supports 62.5/125m and 50/125m multimode fiber optics (maximum distances 300 m and 550 m respectively), compatible
What is a transceiver and how does it work?
A transceiver (transmitter + receiver) sends and receives data via network cables - in the form of light (fiber optic) or electrical signals (copper). It is plugged into standardized ports such as SFP, SFP+, or QSFP and is often hot-swappable, meaning it can be replaced during operation.
Typical applications:
- Connecting network components over long distances
- Upgrading existing networks to higher bandwidths
- Integration into modular switches, firewalls, or storage systems
Overview of common transceiver formats
SFP & SFP+:
- SFP module: The standard for 1 Gbit/s connections
- SFP+ module: Supports up to 10 Gbit/s – ideal for servers or core switches
- SFP S / SFP SFP+: Combinations or product names in manufacturer documentation, often used synonymously
Other formats:
- QSFP/QSFP28: For 40G, 100G, or 400G applications
- SFP28: 25G transceiver for modern data centers
Fiber optic transceivers vs. copper
Fiber optic transceivers enable interference-free transmission over long distances - ideal in data centers, between buildings, or in EMC-critical environments. In comparison, copper transceivers are suitable for short distances (up to 100 m) and standardized cabling.
Advantages of fiber optics:
- High bandwidths (10G, 25G, 100G+)
- Low latency
- Insensitive to electromagnetic interference
When selecting a fiber optic transceiver module, wavelength, distance, and fiber type (single-mode vs. multi-mode) should be taken into account.
Manufacturer compatibility: Cisco, Juniper, Aruba, Dell, Lenovo, and many more
Transceivers are often manufacturer-specific. it-market offers a wide selection of compatible modules for the following systems:
- Cisco transceivers: e.g., for Catalyst, Nexus, or Meraki series
- Juniper transceivers: for EX, QFX, and MX platforms
- Aruba transceivers: for Aruba switches or Instant-On solutions
- Dell & Lenovo transceivers: specially validated modules for PowerSwitch and ThinkSystem environments
- And many other manufacturers
Transceivers: new, used, and refurbished at it-market
At it-market, you will find tested network transceivers for all common manufacturers and requirements. Whether you need an SFP module, a 10G SFP+, a QSFP, or a fiber optic transceiver, we offer new, used, and refurbished transceivers with tested quality.
Benefit from:
- 3-year warranty for companies
- Up to €2,500 buyer protection
- Short delivery times
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