SFP+, SFP28, QSFP+, QSFP28, QSFP-DD vs OSFP are the different Form Factors of the Optical Transceiver Module, these Hot-Pullage Optical Modules are mainly used in Data Centers and Telecommunications to realize High-Speed Data Transmission. What are their differences?
We will explore the main differences between these Optical Modules and help you choose the right one below this article.
What are their differences?
SFP+ vs QSFP+
Data Rate:
SFP+ supports single-line data including 6G, 8G, and 10G, while QSFP+ can support 4 channels of data at 40Gbps(4x10Gbit/s).
Fiber Type:
SFP+ is an LC interface, while QSFP+ is an MPO interface, which can support the multi-channel transmission requirements and is connective with the LC interface.
Application Scenario:
SFP+ is mainly suitable for Data Center 10G(10GBASE-SR) Ethernet Links, Fibre Channel, Network security, etc. While QSFP+ is used for Data Centers, Cloud-computing, Switches, and Routers
SFP28 vs QSFP28
Data Rate:
SFP28 supports 25Gbps (single channel), while QSFP28 supports 100Gbps (through four channels, 25Gbps each).
Fiber Type:
SFP28 is an LC interface, such as IEEE 802.3, SFF-8472, etc. While QSFP28 is an MPO port, which can support Multiple Fibre channels at the same time.
Application Scenario:
SFP28 is used for 25GbE Ethernet and High-Speed Communication. While QSFP28 is suitable for 100G Ethernet (4x25Gbps), EDR InfiniBand.
QSFP+ vs QSFP28
Data Rate:
QSFP+ supports 4 channels of data of 40Gbps, and each channel has a rate of 10Gbps. While QSFP28 supports 4 channels of data of 100Gbps, and each channel is increased to 25Gbps.
Application Scenario:
QSFP+ is suitable for Data Centers, Cloud computing, Switches, and Routers. While QSFP28 is used for 100G Ethernet (4x25Gbps), EDR InfiniBand.
QSFP-DD vs OSFP
Data Rate:
Both QSFP-DD and OSFP support 800Gbps. While QSFP-DD has an 8-channel electrical interface, each channel rate can reach 25Gb/s (NRZ modulation) or 50Gb/s (PAM4 modulation), providing solutions up to 200Gb/s or 400Gb/s.
Fiber Type:
QSFP-DD: LC, MPO/MTP12, MPO/MTP16, MPO/MTP24, CS, SN, etc.
OSFP: LC, MPO/MTP, CS, MDC, SN, etc.
Application Scenario:
Both QSFP-DD and OSFP are suitable for Data Centers, Cloud computing, and hyperscale Networks that require high bandwidth and large-capacity data transmission.
More specifications of SFP+ vs SFP28 vs QSFP+ vs QSFP28 vs QSFP-DD vs OSFP are listed in the following Table 1.
| FORMS | STANDARD | DATA RATE | WAVELENGTH | FIBER TYPE | MAX DISTANCE | DOM | Application | Operating Temperature | Price |
| SFP+ | SFP+ MSA IEE802.3ae | 8.5G 10G | 850nm 1310nm 1550nm CWDM DWDM BiDi Copper | OM3 OM4 SMF | 120km | Yes | Ethernet Fiber Channel CPRI Datacenter | Commercial
Industrial | $$ |
| QSFP+ | IEEE 802.3ba QSFP+ MSA SFF-8436 SFF-8636 Infiniband 40G QDR | 40G 56G | 850nm 1310nm 832-918nm | OM3 OM4 SMF | 80km | Yes | Datacenter Cloud computing | Commercial
Industrial | $$ |
| SFP28 | IEEE 802.3by SFP28 MSA SFF-8472 SFF-8432 | 25G 32G | 850nm 1310nm CWDM DWDM BiDi | OM3 OM4 SMF | 10km | Yes | Datacenter Cloud computing | Commercial
Industrial | $$ |
| QSFP28 | IEEE 802.3bm QSFP28 MSA SFF-8665 SFF-8636 | 100G 112G | 850nm 1310nm CWDM4 | OM3 OM4 SMF | 80km | Yes | Datacenter Cloud computing | Commercial
Industrial | $$$ |
| QSFPP-DD | QSFP-DD MSA | 200G 400G 800G | 850nm 1310nm CWDM4 | OM3 OM4 SMF | 10km | Yes | Datacenter Cloud computing | Commercial
Industrial | $$$ |
| OSFP | OSFP MSA | 400G 800G | 850nm 1310nm CWDM4 | OM3 OM4 SMF | 10km | Yes | Datacenter Cloud computing | Commercial
Industrial | $$$ |
Table 1: SFP, SFP+, SFP28, QSFP+, QSFP28, QSFP-DD vs OSFP
How to choose them?
Choosing the right connector type can be complex due to the variety of options available. However, the following tips will help you decide which connector to use:
#1 Compatibility
#2 Wavelength
#3 Data Rate/Speeds
#4 Fiber Type
#5 Environmental Considerations
#6 Transmission Distance
Get details about choosing the right optical modules here: A Simple Guide: How to Choose the Right Optical Module for You?
The market has to continue to develop small-volume and high-bandwidth optical modules because of the rapid development of Fiber Optic Communication Technology. So, optical modules with different package standards are available, such as SFP+, SFP28, QSFP+, QSFP28, QSFP-DD, and OSFP.
Therefore, we need to consider the transmission distance, bandwidth, applications seniors, and compatibility before choosing the right optical module.
MVSLINK (Suzhou Weimei Electronic Technology Co., Ltd. ) is a 12+ years old optical module supplier with a factory, dedicated to providing high-quality optical modules and professional communication solutions for all customers, offering 1 piece OEM service.
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