The **W2PV-C3SB2-R** is a specific part number associated with high-performance electronic cabling and interface solutions, typically manufactured by companies like **Walsin** or used in specialized industrial/computing assemblies. It is primarily categorized as an **SFP+ (Small Form-factor Pluggable) Passive Copper Cable**. --- ### 1. Key Technical Specifications | Feature | Specification | | :--- | :--- | | **Connector Type** | SFP+ to SFP+ | | **Cable Type** | Passive Twinax (Copper) | | **Max Data Rate** | 10 Gbps (10G Ethernet) | | **Impedance** | 100 Ohms | | **Wire Gauge** | Typically 30AWG (varies by length) | | **Temperature Range** | 0°C to 70°C (Commercial Grade) | | **RoHS Status** | Compliant (Lead-free) | --- ### 2. Breakdown of the Electronic Components To understand how this part functions, we must look at the internal architecture of the SFP+ assembly: #### A. The EEPROM (Serial ID) Inside the connector housing, there is a small **I2C-compatible EEPROM**. This chip stores metadata about the cable, including: * Manufacturer name. * Serial number. * Data rate capabilities. * Product ID. The host device (like a network switch) reads this chip to verify compatibility and configure the port. #### B. The Printed Circuit Board (PCB) The copper wires are not directly soldered to the external pins. Instead, they are terminated on a small, multi-layer PCB inside the plug. This PCB is designed with **Controlled Impedance** traces to ensure signal integrity at high frequencies (up to 5 GHz for 10G signals). #### C. EMI Shielding The "C3SB2" designation often refers to the specific shielding and backshell configuration. These parts utilize: * **Zinc Die-cast Housing:** Provides mechanical strength and EMI (Electromagnetic Interference) suppression. * **360° Shield Termination:** Ensures the cable braid is grounded to the connector shell to prevent noise leakage. --- ### 3. Applications and Usage This part is commonly found in the following environments: 1. **Top-of-Rack (ToR) Switching:** Connecting a server to a switch located in the same or adjacent rack. 2. **Storage Area Networks (SAN):** High-speed data transfer between controllers and disk arrays. 3. **Network Interface Cards (NICs):** Providing 10G connectivity to workstations. --- ### 4. Advantages of Passive Copper (W2PV series) * **Low Latency:** Since there is no optical-to-electrical conversion, the latency is near-zero. * **Lower Cost:** Significantly cheaper than using two optical transceivers and a fiber patch cable. * **Power Efficiency:** Passive cables consume virtually zero power, reducing the thermal load on the switch.