🔌 Interface Specifications
- Input Interface: USB4 / Thunderbolt 4
- Output Interface: Dual SFP+ Fiber
- Transfer Speed: 10Gbps per port
- Installation: Driver Required
💰 Product Advantages
- Affordable Price: Great Value
- Chip Quality: Intel Original 82599ES
- Dual Ports: High Scalability
- Tech Support: Professional Service
📊 Technical Specifications
🔧 Hardware Specifications
| Model: | DTB3F21 |
| Chipset: | Intel 82599ES |
| Input Interface: | USB4 / Thunderbolt 4 |
| Output Interface: | 2x SFP+ Fiber |
| Dimensions: | 142.5×69.5×25.6mm |
| Weight: | Net 239.5g / Gross 335.5g |
🌡️ Environmental Parameters
| Operating Temp: | 0°C to +55°C |
| Storage Temp: | -40°C to +70°C |
| Humidity: | 5% to 95% non-condensing |
🚀 Advanced Features
🔄 Offload Engines
- TCP Segmentation Offload (256KB)
- IPv6 Checksum Offload
- Jumbo Frame Support (15.5KB)
- VLAN 802.1q Tagging
⚡ Queue Management
- Multiple RX Queues (16×8, 32×4)
- 128 Transmit Queues
- Flow Director Technology
- Dynamic Interrupt Moderation
🛡️ Advanced Functions
- Data Center Bridging (DCB)
- 64 Virtual Machine Support (SR-IOV)
- MSI/MSI-X Interrupts
- DCA Support
🎯 Application Scenarios
Workstation Upgrade
High-performance computing
CAD/Video editing workflows
Storage Systems
NAS/SAN connectivity
Backup and archival
Network Upgrade
Server connectivity
Data center applications
📦 Package Contents
Network Adapter
DTB3F21 USB4 to Dual SFP+
Professional grade hardware
USB Cable
Type-C to Type-C cable
High-speed data transmission
Documentation
Installation guide
Driver download links
💻 System Compatibility
Windows (7/8/10/11), macOS (10.13+), Linux (kernel 3.x+), VMware ESXi, and other systems supporting Intel 82599ES drivers
⚠️ Driver Requirements
Intel 82599ES driver installation required for optimal performance
📥 Download Driver Package
❓ Frequently Asked Questions
Q1: What systems are compatible with this adapter?
A: The DTB3F21 is compatible with Windows (7/8/10/11), macOS (10.13+), Linux (kernel 3.x+), VMware ESXi, and other systems that support Intel 82599ES drivers. Driver installation is required for all operating systems.
Q2: Does this work with USB-C or Thunderbolt 3/4 ports?
A: Yes, this adapter works with both USB4 and Thunderbolt 3/4 ports. It requires a USB-C port with Thunderbolt 3/4 or USB4 support for optimal 10Gbps performance. Standard USB 3.x ports may have limited bandwidth.
Q3: What type of SFP+ modules do I need?
A: This adapter supports standard 10G SFP+ modules including SR (short range, 850nm, up to 300m), LR (long range, 1310nm, up to 10km), and DAC (Direct Attach Copper) cables. We offer bundle options with compatible modules.
Q4: Can I use both ports simultaneously?
A: Yes, both SFP+ ports can be used simultaneously for link aggregation (LACP), failover redundancy, or connecting to separate networks for maximum flexibility.
Q5: Do I need to install drivers?
A: Yes, Intel 82599ES drivers are required for proper operation. Download links are provided in the package documentation and above.
Q6: What is the maximum cable distance supported?
A: Distance depends on the SFP+ module used: SR modules support up to 300m over multimode fiber, LR modules support up to 10km over single-mode fiber, and DAC cables typically support 1-7 meters.
Q7: Is this suitable for virtualization environments?
A: Absolutely! The Intel 82599ES chipset supports SR-IOV (Single Root I/O Virtualization), allowing you to assign virtual network interfaces to up to 64 virtual machines. It's ideal for VMware ESXi, Proxmox, and other hypervisors.
Q8: Does it support jumbo frames?
A: Yes, the adapter supports jumbo frames up to 15.5KB (15,500 bytes), which can significantly improve throughput for large file transfers and storage applications.
Q9: What's the power consumption?
A: The adapter is powered via the USB-C connection and typically consumes 8-12W under full load. Ensure your USB-C port can provide sufficient power (most Thunderbolt 3/4 ports support this).
Q10: What warranty and support do you provide?
A: We provide a 1-year manufacturer warranty covering defects in materials and workmanship. Our technical support team is available to assist with driver installation, configuration, and troubleshooting.
💡 Still have questions? Contact our technical support team for expert assistance!