| RIG — Laser Illuminated Projector | Class N / |
| RIH — Metal Halide Lamp, Other | Class N / |
| RII — Scientific Optical Instrument, Noncoherent | Class N / |
| RIJ — Automotive Radar | Class N / |
| RIK — Television Or Monitor, Non-Crt, Non-Medical, Video Display | Class N / |
| RIL — Laser Ignition Tool | Class N / |
| RIM — Laser Marker, Cutter, Or Engraver, Tabletop, Consumer | Class N / |
| RIN — Laser Illuminated Lighting Instrument | Class N / |
| RIO — Led Toys And Entertainment Products | Class N / |
| RIP — Led Diodes Sold As Components To Be Installed In Finished Electronic Products | Class N / |
| RIQ — Low Emission Leds As Indicators Or Decorations | Class N / |
| SAB — Table Mounted Miniaturized Electromechanical Surgical System | Class 2 / SU |
| SAC — Adamts13 Activity Test System | Class 2 / HE |
| SAD — Japanese Encephalitis Virus Immunological/Serology Test | Class N / MI |
| SAF — Integrated Continuous Glucose Monitor For Non-Intensive Glucose Monitoring, Over-The-Counter | Class 2 / CH |
| SAH — Magnetic Compression Anastomosis System | Class 2 / SU |
| SAI — Ankle Fusion Cage | Class 2 / OR |
| SAK — Software Device To Aid In The Prediction Or Diagnosis Of Sepsis | Class 2 / GU |
| SAL — Device, Automated Cell Locating, Bone Marrow | Class 2 / HE |
| SAM — Battery-Powered Instruments Charged Through Sterile Barriers | Class 1 / OR |
| SAN — Automated Antimicrobial Susceptibility Test System For Positive Blood Culture Samples | Class 2 / MI |
| SAO — Radiology Software For Opportunistic Evaluation Of Low Bone Mineral Density | Class 2 / RA |
| SAP — Computerized Behavioral Therapy Device For Depressive Disorders. | Class 2 / NE |
| SAQ — Electromechanical System For Open Microsurgery | Class 2 / SU |
| SAR — Adjunctive Hemodynamic Indicator With Decision Point For Military Use | Class 2 / CV |
| SAT — Pulmonary Hypertension Machine Learning-Based Notification Software | Class 2 / CV |
| SAW — Fluorescence Imaging For Breast Cancer Detection | Class 3 / SU |
| SAX — Home Monitoring Ophthalmic Optical Coherence Tomography (Oct) Imaging Device | Class 2 / OP |
| SAZ — Stimulator, Nerve Terminus, Totally Implanted For Chronic Intractable Post-Amputation Pain Of The Lower Limb | Class 3 / NE |
| SBA — Integrated Continuous Glucose Monitoring System With Sensor Containing Dexamethasone Acetate | Class 2 / CH |
| SBB — System, Colorectal Neoplasia, Rna Markers And Hemoglobin Detection | Class 3 / PA |
| SBC — Dental Image Analyzer | Class 2 / DE |
| SBE — Digital Physical/Chemical Sterilization Process Sensor | Class 2 / HO |
| SBF — Orthopedic Augmented Reality | Class 2 / OR |
| SBG — In Situ Polymerizing Peripheral Nerve Cap | Class 2 / NE |
| SBH — Integrated Continuous Glucose Monitor For Non-Intensive Glucose Management, Over-The-Counter | Class 2 / CH |
| SBI — Manual Refractor, 3d Display | Class 1 / OP |
| SBK — Artificial Chordae Tendineae Surgical Replacement System | Class 2 / CV |
| SBL — Immunohistochemistry Assay, Antibody, Melanoma-Associated Antigen A4 | Class 3 / PA |
| SBN — Digital Therapy Device For Convergence Insufficiency | Class 1 / OP |
| SBO — Bed-Patient Activity Monitoring System | Class 1 / HO |
| SBP — Simple Point-Of-Care Nucleic Acid-Based Hepatitis C Virus Ribonucleic Acid Test | Class 2 / MI |
| SBQ — Atrial Fibrillation Risk Prediction Machine Learning-Based Notification Software | Class 2 / CV |
| SBS — Laryngeal Injection Set With Led Light | Class 1 / EN |
| SBT — Device To Detect Microbial Colonization Directly From Clinical Specimens. | Class 2 / MI |
| SBX — Software For Endoscopy Procedure Metrics | Class 2 / GU |
| SBY — High Throughput Sequencing Based Tumor Profiling Test Of Circulating Cell-Free Nucleic Acids | Class 2 / PA |
| SBZ — Test For Detection Of Antibodies Associated With Syphilis Performed By Lay Users | Class 2 / MI |
| SCA — Multi-Analyte Respiratory Virus Antigen Detection Test | Class 2 / MI |
| SCB — Deflation Needle For Removal Of Intragastric Balloon | Class 2 / GU |