The **SATA-R-PM-VT** is a standardized part numbering convention often used for Serial ATA (SATA) connectors. Breaking down the nomenclature helps identify its physical and electrical characteristics. ### Part Number Breakdown | Segment | Meaning | Description | | :--- | :--- | :--- | | **SATA** | Interface Type | Serial Advanced Technology Attachment (Standard Data/Power interface). | | **R** | Receptacle | Indicates a Female connector (intended to receive a Male plug). | | **PM** | Port Multiplier / Power-Data | Often refers to the standard 7+15 pin configuration (Data + Power). | | **VT** | Vertical / Straight | Indicates a Vertical (Straight) PCB mounting orientation (180°). | --- ### Technical Specifications The SATA-R-PM-VT series typically follows these electrical and physical standards: #### 1. Pin Configuration * **7 Pins (Data):** Handles high-speed differential signaling. * **15 Pins (Power):** Provides 3.3V, 5V, and 12V DC power lines to the drive. * **Total:** 22-position integrated connector. #### 2. Electrical Characteristics * **Current Rating:** 1.5A per pin minimum. * **Voltage Rating:** 30V AC/DC. * **Contact Resistance:** Max 30 mΩ. * **Insulation Resistance:** Min 1000 MΩ. #### 3. Physical Properties * **Mounting Type:** Through-hole or Surface Mount (SMT) depending on the specific manufacturer sub-variant. * **Orientation:** Vertical (VT). The connector sits perpendicular to the PCB, which is ideal for space-saving in vertical stacks or server backplanes. * **Housing Material:** High-temperature thermoplastic (LCP or Nylon), capable of withstanding reflow soldering temperatures (up to 260°C). --- ### Common Applications * **Storage Backplanes:** Used in servers where drives are hot-swapped vertically. * **Industrial PC Motherboards:** Providing SATA ports in tight enclosures where right-angle connectors would interfere with other components. * **SSD/HDD Testing Fixtures:** Used on test jigs to dock drives for firmware flashing or quality checks. --- ### Key Differences: Vertical (VT) vs. Right-Angle (RA) | Feature | Vertical (VT) | Right-Angle (RA) | | :--- | :--- | :--- | | **PCB Footprint** | Small/Compact | Larger (Lateral space) | | **Insertion Path** | From Above (Top-down) | From the Side | | **Mechanical Stress** | Force is pushed directly into the PCB | Force can create leverage on solder joints |