The **10214-R20CS** is a specific model of a **Mini-SAS (Serial Attached SCSI) connector**, typically manufactured by **3M** or other high-speed interconnect specialists. It is widely used in enterprise computing for connecting servers to storage arrays. --- ### 1. Technical Specifications The part belongs to the **MDR (Mini Delta Ribbon)** or **Mini-SAS** family. Below are the primary technical characteristics: | Feature | Specification | | :--- | :--- | | **Pin Count** | 26 Pins | | **Connector Type** | Receptacle (Female) | | **Mounting Type** | Right Angle, Through-Hole | | **Application** | Internal SAS/SATA Connections | | **Pitch** | 0.80 mm | | **Shielding** | Fully shielded for EMI/RFI protection | --- ### 2. Key Components & Construction The "R20CS" suffix often denotes specific mechanical features for PCB mounting: 1. **Contact Plating**: Usually features Gold plating (around 30µ") on the contact area to ensure low resistance and high durability over many mating cycles. 2. **Housing Material**: High-temperature thermoplastic (LCP - Liquid Crystal Polymer) to withstand reflow soldering temperatures. 3. **Boardlocks/Solder Tabs**: Includes metal tabs that provide mechanical stability to the PCB, ensuring the connector doesn't rip off under the weight of heavy SAS cables. 4. **Signal Integrity**: Designed for high-speed differential signaling, maintaining 100-ohm impedance to support SAS 2.0 (6Gbps) or higher speeds. --- ### 3. Pinout and Signal Usage In a 26-pin configuration (Standard SFF-8087), the pins are allocated for four channels of data: * **Transmit (Tx+/-):** 4 pairs for sending data. * **Receive (Rx+/-):** 4 pairs for receiving data. * **Ground (GND):** Multiple pins interspersed between signal pairs to reduce crosstalk. * **Sideband Signals:** Used for enclosure management (SGPIO) and device identification. --- ### 4. Typical Applications * **RAID Controllers:** As the physical port on a PCIe RAID card. * **Backplanes:** Connecting the hard drive bay to the motherboard. * **Server Motherboards:** Integrated storage ports for high-density servers. * **Workstations:** High-end desktop systems requiring SAS drive support. --- ### 5. Identification Code Breakdown While 3M’s nomenclature can vary, the breakdown generally follows this logic: * **102:** Series identifier (Mini Delta Ribbon / Mini-SAS). * **14:** Specific shell or configuration size. * **R20:** Right-angle orientation with specific tail length. * **CS:** Specific packaging or plating variation (usually "C" for Gold over Nickel). ---