General
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Model: ThinkPad P51s — part of the P-series slim workstation line.
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Form factor: 15.6″ clamshell mobile workstation.
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Weight/Dimensions: Approx. ~1.9-2.0 kg; thickness ~20 mm.
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Build: Business-class, MIL-STD tested durability.
Processor / Graphics
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CPU: Your unit states “6th gen i7”. Indeed some P51s configs list Intel Core i7-6500U / i7-6600U as options.
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GPU: NVIDIA Quadro (2 GB GDDR5 dedicated) + integrated Intel HD Graphics (depending on CPU). Many P51s used Quadro M520 (2 GB).
Display
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Size: 15.6″
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Options: Full HD (1920×1080) IPS or 4K UHD (3840×2160) IPS
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Finish: Typically non-touch, anti-glare matte panel (business variant).
Memory (RAM)
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In your spec: 16 GB RAM.
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Memory type: DDR4 SDRAM (2133 MHz typical) in SO-DIMM slots.
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Slots: 2 × SO-DIMM.
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Maximum supported: Up to ~32 GB in many variants.
Upgrade Note: Yes — RAM is upgradeable (not solder-only) because of SO-DIMM slots.
Storage
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Your spec: 256 GB SSD.
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Storage type: M.2 NVMe or SATA SSD depending on variant. Many P51s support M.2 SSD.
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Drive bay: Some versions allow additional 2.5″ drive or second slot depending on config.
Upgrade Note: Yes — storage is upgradeable; you can replace the SSD with a larger capacity drive.
Connectivity & Ports
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USB: Several USB-A ports + at least one USB-C/Thunderbolt 3 (in some configs).
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Display outputs: HDMI, mini-DisplayPort, either Thunderbolt/USB-C depending.
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Card reader: 4-in-1 SD card reader.
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Network: Gigabit Ethernet, WiFi 802.11ac + Bluetooth.
Battery & Power
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Battery life: Up to ~10-14 hours depending on usage & config.
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Power adapter: ~65 W typical.
Other Features
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Keyboard: ThinkPad high-quality keyboard, TrackPoint.
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Security: Fingerprint reader (in many configs), TPM, business-level security features.
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Certifications: ISV certified for professional applications, MIL-STD tested.
Strengths & Constraints
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Strengths: Good professional graphics (Quadro), upgradeable RAM/storage, durable build, business features.
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Constraints: 6th-gen CPU means dual-core, less multi-core power compared to modern machines; older generation so battery, support and new driver availability may be less optimal; GPU is modest (2 GB) so heavy 3D workloads will be limited.
