Matched pair of Micron 32GB DDR5-5600 SODIMM laptop memory modules, 64GB total. Micron part number MTC16C2085S1SC56BD1, Lenovo FRU 5M31L87433. Both modules have the same part number and FRU and came out of the same machine together.

Condition: Pulled from a brand-new Lenovo ThinkPad P14s Gen 5 (machine type 21G2, built December 2024) bought new from an authorized Lenovo reseller. The laptop was booted and run with these modules installed and they were verified good. The machine was then powered down and both modules were removed by a technician with 35 years of IT experience, to make room for larger modules. Used only for that initial boot and verification. Please examine the photos carefully for condition; they show the actual modules and labels.

Included: two 32GB modules, packed in a manufacturer’s memory module container. No retail box; these are OEM modules that shipped inside the laptop.

Specifications

• Capacity: 32GB per module, 64GB total
• Type: DDR5 SDRAM, non-ECC, unbuffered
• Speed: 5600 MT/s (PC5-5600B, also written PC5-44800)
• Organization: 2Rx8 (dual rank), 16 memory chips per module
• Form factor: 262-pin SO-DIMM
• Voltage: 1.1V
• Manufacturer: Micron (Crucial’s parent company; this is the OEM version, not retail Crucial packaging)

Compatibility

• Fits laptops and mini PCs with DDR5 SO-DIMM slots. Standard JEDEC modules, not locked to Lenovo; they work in Dell, HP, and other brands with DDR5 SO-DIMM slots.
• The modules run at the speed your system supports. A system rated for DDR5-4800 will run them at 4800; one rated for 5600 will run them at 5600.
• Not compatible with DDR4 slots, desktop DIMM slots, or laptops with soldered or CAMM2 memory.
• The two modules can be used together as a 64GB pair or separately as single 32GB upgrades.
• Check your laptop’s maximum supported memory before buying. Many current business laptops accept 64GB in two slots, but not all.