Genuine Lenovo ThinkPad System Mainboard (BDPLANAR Replacement Suite)
13th Gen Intel Core i7-13700H H-Series CPU 🟢 16GB Soldered RAM 🟢 Part Number: 5B21L76748 / 5B21R02021🚀 TRUSTED US-BASED SELLER 🟢 FAST 1-DAY HANDLING TIME🟢 Proudly USA Sourced: This item ships directly from our secure warehouse facility within the United States. No long overseas customs delays, no international routing bottlenecks, and seamless domestic communication.
🟢 Fast 1-Day Handling Turnaround: Packaged with professional care and dispatched to the carrier transit network within 1 business day of cleared payment. Real-time tracking numbers uploaded instantly.
🟢 USA Shipping: 100% Free standard tracking shipping anywhere across the United States via USPS Ground Advantage or alternate tracked ground paths.
🟢 Logistics Safety: Protected inside its genuine Lenovo packaging and wrapped heavily in a premium anti-static ESD shielding bag to survive transit impacts cleanly.
🟢 Global Availability: International transit is supported to select eligible regions via the secure International Shipping program. (Please check the exclusions tab for country eligibility verification).🔴🔴🔴 CRUCIAL HARDWARE LAYOUT WARNING — PLEASE READ BEFORE BUYING 🔴🔴🔴🔴 NO ONBOARD POWER BUTTON KEY (NOK LAYOUT): As per official Lenovo factory design for this modern model generation, this motherboard is an official NOK ("No Onboard Key") configuration. This means there is NO physical plastic power button or fingerprint reader key soldered directly onto the motherboard surface.
🔴 HOW IT INSTALLS: This board is engineered to link up with your laptop chassis frame via an internal ribbon cable. When executing your repair, you will simply plug your laptop's existing palmrest power button/fingerprint module cable straight into the dedicated socket on this new board. It is a direct drop-in replacement.
🔴 STRICT RETURN TERMS: We do not accept returns, cover return shipping costs, or issue refunds for buyer ignorance, lack of technical knowledge, or failure to read this description. If you do not understand laptop hardware architecture, please consult a certified technician prior to purchasing. Look closely at all model numbers before checking out.📋 ENTERPRISE SYSTEM PERFORMANCE HIGHLIGHTSThis genuine, authentic Lenovo factory replacement high-performance system mainboard features a premium integrated 13th Generation Intel Core i7 H-Series processor and an elite on-board factory memory configuration, perfect for direct laptop hardware restoration.🔵 Integrated Processor Core: Intel Core i7-13700H (Up to 5.00 GHz Turbo, 14 Cores [6 Performance / 8 Efficient], 20 Threads, 24MB Smart Cache). High-performance H-Series processing matrix.
🔵 Graphics Architecture Engine: Integrated Intel Iris Xe Graphics (UMA graphics processor array).
🔵 System Memory Infrastructure: 16GB Soldered RAM configured in high-bandwidth Dual-Channel architecture (0 open expansion slots remaining).
🔵 On-Board Protection Layer: Hardware-based discrete yTPM 2.0 (Trusted Platform Module) cryptographic chip embedded natively.🔄 OFFICIAL FACTORY CROSS-COMPATIBILITY LEDGERThis factory service unit is a direct, drop-in engineering substitution for any laptop utilizing a board marked with ANY of the following specific 13th Gen Core i7 16GB Part Numbers (MPNs) or board manufacturing lines:● Lenovo Primary Sourced FRU/MPN: 5B21L76748
● Lenovo Secondary Substitute MPN: 5B21R02021
● Factory Text Line Match: Lenovo MB i7-13700H16G NOK nA yDT yAB Series
● Digital Product Key (DPK): Windows OS License Flag Factory Injected⚠️ STRICT BUYER FITMENT VERIFICATION DISCLAIMER🔴 MACHINE TYPE VERIFICATION: This board matches and fits ONLY the 16-inch ThinkPad E16 Gen 1 (Chassis Type: 21JN, 21JQ) laptops. It WILL NOT fit into AMD-architecture chassis setups, smaller E14/E15 series models, or alternate generation layout variations.
🔴 BUYER RESPONSIBILITY: It is the absolute responsibility of the buyer to ensure they are ordering the exact matching component for their specific system footprint prior to checking out.
🔴 COOLING MATRIX WARNING: This is a native Intel-architecture blueprint layout. It will not accommodate AMD-based cooling fans, screw brackets, heat shields, or thermal pipes. Please audit your technical requirements or consult with a specialist prior to completing checkout.🛠️ HARDWARE WAREHOUSE & CONDITION NOTES:🟢 Lenovo Logistics Source: Sourced directly from professional tech fulfillment logistics as a clean, crisp, mint factory service replacement part. It is 100% brand new, completely unused, and has never been slotted into an active chassis.
🟢 Internal Packaging Integrity: Stored safely inside its genuine Lenovo cardboard shipping packaging container. The internal gray anti-static ESD shielding bag was opened strictly for quality control to capture clear photographs and document system serialization lines for safety.
🟢 Professional Installation Advised: Laptop mainboards are highly sensitive to electrostatic discharge (ESD). Installation by a certified PC hardware repair technician is strongly advised. User-inflicted static shorts, physical trace scratches, or bracket snaps void return privileges. Does not include a CMOS backup battery or outer cooling heatsink assemblies.🛡️ ANTI-FRAUD PROTECTION & RETURN AUDITING● Individual Mapping: High-resolution macro photographs of the specific board layout, silicon chips, and trace pathways are permanently cataloged in our secure fulfillment database prior to dispatch.
● Electronic Serial Tracking: The unique factory serial numbers, MAC addresses, and integrated hardware cryptographic chips of every unit are electronically scanned and mapped to your order transaction.
● Security Identifiers: Each unit is embedded with unique, permanent, invisible security identifiers applied to the multi-layer PCB substrate. Any evidence of component swapping or tampering voids returnsImportant Item Specifics

• Brand: Lenovo
• MPN: 5B21L76748
• Substitute / Alternate MPN: 5B21R02021
• Compatible Product Line: Lenovo ThinkPad E16 Gen 1 (21JN, 21JQ)
• Processor Brand / Model: Intel Core i7-13700H 13th Gen Onboard
• Memory Size / Type: 16 GB Soldered (Dual-Channel Architecture)
• On-Board Graphics Type: Integrated Intel Iris Xe Graphics
• Processor Core Count: 14 Cores / 20 Threads (High-Performance H-Series)
• Seller Location: United States (US-Based Seller)
• Handling Time: Fast 1 Business Day
• Features: Hardware yTPM 2.0 Encryption Array, Embedded Windows DPK License, NOK (No Onboard Power Button Key) Layout
• Condition: Open Box