Corsair Vengeance 16GB DDR4-2666 SODIMM Laptop Memory CMSX16GX4M1A2666C18 Boxed

Corsair Vengeance 16GB DDR4-2666 SODIMM — Premium Performance Laptop Memory (Boxed Retail)

The Corsair Vengeance 16GB DDR4-2666 SODIMM (CMSX16GX4M1A2666C18) is a premium performance memory module from Corsair's iconic Vengeance gaming line, delivering tighter CL18-19-19-39 timings than the standard CL19 of generic DDR4-2666 modules — a meaningful 5% latency improvement at the same nominal speed. Featuring Corsair's auto-overclocking technology that delivers 2666 MT/s automatically without requiring BIOS reconfiguration, plus carefully selected DRAM ICs binned for stability, this 16GB single module is engineered for gamers, content creators, and power users running Intel DDR4 notebooks, NUCs, and small form factor systems. The slim attractive black design ensures physical compatibility with all Intel DDR4 laptops including ultrabooks with limited memory clearance. This unit is shipped in its original sealed retail packaging — boxed with all original Corsair literature and accessories.

🚀 Performance Specifications

• Capacity: 16GB single module (1x16GB)
• Memory Type: DDR4 SDRAM
• Speed: 2666 MT/s (PC4-21300)
• Latency: CL18-19-19-39 (notably tighter than generic CL19)
• True Latency: 13.5 ns (faster than CL19 at same speed = 14.25 ns)
• Voltage: 1.2V (DDR4 standard)
• Form Factor: 260-pin SODIMM (Notebook/Laptop)
• ECC: Non-ECC
• Buffering: Unbuffered
• Auto-Overclock: Automatically runs at 2666 MT/s without BIOS reconfiguration
• Manufacturer: Corsair (carefully selected DRAM)
• Packaging: Sealed retail box with all original accessories

⚡ Why Corsair Vengeance Beats Generic DDR4-2666 Modules

• 5% Lower CAS Latency: CL18 vs generic CL19 at same speed = 13.5 ns vs 14.25 ns true latency — measurable performance improvement in latency-sensitive workloads
• Auto-Overclocking Technology: Automatically boosts performance to 2666 MT/s without requiring manual BIOS configuration on compatible laptops
• Hand-Selected DRAM: Each module built using carefully selected memory chips binned for excellent stability
• Premium Vengeance Branding: Same iconic gaming line trusted by enthusiasts and competitive gamers worldwide
• Slim Black Design: Physical compatibility with all Intel DDR4 notebooks, including ultrabooks with restrictive clearance
• Backward Compatible: Auto-downclocks gracefully to 2400 MT/s or 2133 MT/s on older systems
• Standard 1.2V Operation: No voltage tradeoff for the tighter timings — runs cool and efficient
• Corsair Reliability: Backed by Corsair's renowned engineering and quality assurance

📦 Boxed Retail Condition Explained

• What "Boxed" Means: Original sealed Corsair retail packaging included
• Module Condition: Module is in factory-new condition inside the original sealed blister
• Original Accessories: Includes any literature, documentation, or accessories that shipped with the original retail unit
• Premium Presentation: Perfect for resale, gifts, or buyers who value original packaging integrity
• Authenticity Verified: Sealed packaging ensures genuine Corsair product authenticity
• Best For: Buyers who want maximum confidence in product condition and authenticity

🎨 Design — Black Slim Profile

• Form Factor: Industry-standard 260-pin SODIMM — fits all DDR4-compatible laptops
• PCB Color: Sleek black PCB with Corsair Vengeance branding label
• Slim Design: Specifically engineered for compatibility with all Intel DDR4 notebooks, including ultrabooks with limited memory clearance
• Premium Aesthetic: Black design matches gaming laptop aesthetics and modern business notebook designs
• No RGB: Clean professional gaming aesthetic — perfect for laptops where RGB is unnecessary

🛡️ Build Quality & Reliability

• Hand-Selected DRAM ICs: Each module built using carefully selected memory chips for excellent stability
• Module-Level Testing: Corsair's rigorous testing ensures stable operation at advertised speeds
• JEDEC Compliant: Adheres to the official JEDEC DDR4 specification with auto-overclock enhancement
• Auto-Overclock Validated: Pre-tested to run automatically at 2666 MT/s without manual BIOS configuration
• Premium Vengeance Heritage: Part of Corsair's iconic gaming memory line trusted by enthusiasts since 2007
• Corsair Reliability: Backed by Corsair's renowned engineering and quality assurance protocols

💻 Platform Compatibility

• Intel Laptops: 7th Gen (Kaby Lake) through 11th Gen (Tiger Lake) — H, U, and Y series — runs at native 2666 MT/s
• AMD Laptops: Ryzen 2000 (Raven Ridge), Ryzen 3000 (Picasso), Ryzen 4000 (Renoir), Ryzen 5000 (Cezanne / Lucienne)
• Backward Compatible: Auto-downclocks on older Intel 6th Gen / AMD Ryzen 1000 systems to 2400 or 2133 MT/s
• Intel NUC Kits: Compatible with Intel NUC mini PC kits using DDR4 SODIMM (Skull Canyon, Hades Canyon, Ghost Canyon, Phantom Canyon, Tiger Canyon)
• Gaming Laptops: Optimized for ASUS ROG, MSI, Razer Blade, Alienware, Lenovo Legion, HP OMEN gaming laptops (DDR4 generations)
• Business Laptops: Compatible with Lenovo ThinkPad T-series, HP EliteBook, Dell Latitude (DDR4 generations)
• Productivity Laptops: Compatible with Acer Aspire, Lenovo IdeaPad, ASUS VivoBook, HP Pavilion (DDR4 generations)
• Form Factor Match: 260-pin SODIMM — does NOT fit DDR3 (204-pin) or DDR5 (262-pin) slots (different keying)
• Single-Module or Dual-Channel: Run as single 16GB module, or pair with another identical CMSX16GX4M1A2666C18 for 32GB dual-channel performance

🎯 Best For

• Gaming laptops (DDR4 era) needing tight-timing memory for maximum frame rates
• Intel NUC and other small form factor PC builds using DDR4 SODIMM
• Gamers wanting Corsair's renowned Vengeance branding and premium binning
• Power users wanting tighter CL18 timings over generic CL19 modules
• Laptops shipped with 8GB upgrading to 16GB or 32GB total
• Buyers who specifically want Boxed retail packaging for resale, gifts, or premium presentation
• Content creators running 4K video editing, photo editing on Intel laptops with DDR4 SODIMM
• Software developers running multiple browser tabs, IDEs, and Docker containers
• Replacing failed memory in DDR4 gaming laptops manufactured 2018-2021
• Acer Predator, ASUS ROG Zephyrus, MSI GS/GE series, Lenovo Legion 5/7 (Gen 1-5) compatibility-verified models

📋 Key Features

• 16GB single DDR4-2666 SODIMM module (CMSX16GX4M1A2666C18)
• 2666 MT/s PC4-21300 data rate with notably tight CL18-19-19-39 latency
• True latency of 13.5 ns — 5% faster than CL19 modules at the same speed
• Auto-overclocking technology — automatically runs at 2666 MT/s without BIOS reconfiguration
• 1.2V standard DDR4 operation
• 260-pin standard laptop DDR4 SODIMM form factor
• Non-ECC, unbuffered for consumer laptop compatibility
• JEDEC-compliant — Plug & Play with all DDR4-compatible laptops
• Auto-downclocks to 2400 / 2133 MT/s on older DDR4 platforms
• Sleek black PCB with Corsair Vengeance branding
• Slim design for physical compatibility with all Intel DDR4 notebooks
• Hand-selected DRAM chips binned for excellent stability
• Compatible with Intel 7th-11th Gen, AMD Ryzen 2000-5000 series laptops, Intel NUC kits
• Standard SODIMM height — fits ultrabooks, gaming laptops, business laptops, and SFF systems
• Corsair's iconic Vengeance gaming memory line
• Boxed retail condition: original sealed Corsair retail packaging with all accessories
• SKU: LRAM-CORS-16G-DDR4-2666-OB-0158