SFP+ supports 10Gbps speeds over 1 lane for legacy 10G Ethernet in servers like Dell PowerEdge R760, while QSFP28 delivers 100Gbps via 4x25G lanes for high-bandwidth AI/HPC in Dell XE9680 with NVIDIA H100 GPUs. Choose SFP+ for cost-effective 10G upgrades; opt for QSFP28 in data centers needing 100G for virtualization and big data. WECENT supplies original Cisco/Huawei modules with warranties.
Check: Accessories
What Are SFP+ and QSFP28 Transceivers?
SFP+ transceivers are compact, hot-pluggable modules delivering 10Gbps Ethernet and fiber channel for enterprise servers, supporting multimode or single-mode fiber up to 10-40km. QSFP28 modules provide higher density at 100Gbps using 4x25G lanes, perfect for data center switches and AI setups like HPE ProLiant DL380 Gen11. SFP+ uses a smaller 20-pin form factor; QSFP28 employs a larger 38-pin design for Cisco, H3C, and Huawei compatibility.
How Do SFP+ and QSFP28 Differ in Speed and Specs?
SFP+ operates at 10Gbps with 1x10G lane and 1.5W power, while QSFP28 reaches 100Gbps via 4x25G lanes at 3.5W. SFP+ suits 10GBASE-SR/LR protocols for shorter reaches; QSFP28 handles 100GBASE-SR4/LR4 for longer distances in high-demand environments.
| Feature | SFP+ | QSFP28 |
|---|---|---|
| Speed | 10Gbps | 100Gbps |
| Lanes | 1x10G | 4x25G |
| Power | 1.5W | 3.5W |
| Protocols | 10GBASE-SR/LR | 100GBASE-SR4/LR4 |
| Reach | Up to 40km | Up to 10km (SR4) |
SFP+ fits virtualization in Dell PowerEdge Gen14-17 servers; QSFP28 powers 100G AI training with NVIDIA H200 or B200 in Dell XE9680. QSFP28 breakouts to 4xSFP28 enable 25G flexibility in HPE or Huawei systems.
WECENT Expert Views: With over 8 years as an authorized agent for Dell, Huawei, HP, Lenovo, Cisco, and H3C, WECENT sources original SFP+ and QSFP28 transceivers ensuring CE, FCC, and RoHS compliance for global data centers. We offer OEM customization for wholesalers and system integrators, plus full lifecycle support from consultation and product selection to installation, maintenance, and technical expertise. Serving finance, education, healthcare, and AI infrastructures, WECENT delivers competitive pricing on networking gear for Dell PowerEdge R760 to XE9680 and HPE ProLiant DL380 Gen11, minimizing downtime in high-stakes enterprise deployments worldwide.
Which Servers and Brands Support SFP+ vs QSFP28?
SFP+ works in Dell PowerEdge R770 for 10G ports, HPE DL360 Gen11, and Cisco Nexus switches. QSFP28 fits Dell XE7740, MX750c, H3C, and Huawei CloudEngine for 100G. Match SFP+ to 10/40G Ethernet in legacy setups; QSFP28 to NVIDIA GPU clusters like H100, H800, B100, B200, B300.
Check: WECENT Server Equipment Supplier
What Is SFP+ vs QSFP28 Compatibility in Data Centers?
Ensure MSA standards compliance for matching; use QSFP28-to-SFP+ breakout cables for hybrid 10G/100G in Dell or HPE racks. Avoid mismatches causing downtime in AI/HPC, such as QSFP28 for 100G RoCE on Dell XE9680 with H100 GPUs. Source originals from WECENT for traceability in finance and healthcare.
Why Choose QSFP28 Over SFP+ for AI and High-Performance Servers?
QSFP28 provides 10x bandwidth for big data and AI in Lenovo or Huawei servers, outpacing SFP+’s 10G for basic needs. It future-proofs to 400G scalability in Dell PowerEdge Gen17, aligning with WECENT’s NVIDIA H200 and B300 GPUs for complete AI stacks. Density offsets higher initial costs in dense data centers.
How to Identify Compatible Modules and Match Speed Tiers?
Review server NIC specs like Mellanox ConnectX-6 for QSFP28 in Dell XE9680; consult Cisco or H3C matrices. WECENT offers expert consultation for bulk OEM matching and installation testing for integrators.
| Speed Tier | Module | Example Server/GPU |
|---|---|---|
| 10G | SFP+ | Dell R760 |
| 25G | SFP28 | HPE DL380 Gen11 |
| 40G | QSFP+ | Dell R770 |
| 100G | QSFP28 | Dell XE9680 w/ H100 |
What Are Real-World Use Cases for SFP+ and QSFP28 in Enterprise IT?
SFP+ enables 10G virtualization in HPE ProLiant ML110 Gen11 for education and healthcare. QSFP28 drives 100G AI training in Dell PowerEdge XE7740 with B200 GPUs for finance data centers. WECENT delivers tailored Cisco switch upgrades with warranties and global logistics.
Conclusion
Select SFP+ for reliable 10G in standard servers or QSFP28 for 100G AI/HPC scalability. Partner with WECENT, the authorized agent for original Dell, Cisco, Huawei modules, offering customization and full IT lifecycle support to eliminate downtime and ensure enterprise-grade performance in data centers worldwide.
FAQs
What is the main difference between SFP+ and QSFP28?
SFP+ delivers 10Gbps over 1 lane for legacy Ethernet; QSFP28 provides 100Gbps via 4x25G lanes for demanding data centers.
Are QSFP28 modules compatible with SFP+ ports?
Not directly—require breakout cables or adapters; confirm with Dell, HPE, Cisco specs for R760 or XE9680 servers.
Which transceiver for Dell PowerEdge AI servers?
QSFP28 for 100G in XE9680 with NVIDIA H100/H200; SFP+ for 10G in R770—WECENT supplies originals with warranties.
Can WECENT provide Cisco/Huawei QSFP28 for bulk orders?
Yes, as authorized agent: OEM customization, warranties, end-to-end support for wholesalers and data centers.
How to avoid transceiver compatibility issues?
Match speed tiers using vendor charts; leverage WECENT’s 8+ years expertise in Dell, HPE, Cisco ecosystems.