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Four green circuit boards with black chips, 260-pin DDR4 SODIMM form factor, no heat spreader

Computer Memory Solutions

Computer Memory Solutions CM2048642400SO 64GB (4x16GB) DDR4 2400 CL17 SODIMM memory upgrade

SKU CH-SWGW-ZZ6HB

64 GB kit of four 16 GB DDR4 2400 CL17 SODIMM modules for Lenovo ThinkPad P50, P51, P70 and P71 workstations

  • Total capacity64 GB (4 × 16 GB)
  • Rated speedDDR4 2400 (PC4 19200)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL17
  • Memory timings17-17-17
  • Rated voltage1.2 V
  • 64 GB total capacity for demanding workloads
  • DDR4 2400 speed with CL17 latency for responsive performance
  • 2 V low voltage reduces power draw and heat
  • 260-pin SODIMM form factor fits ThinkPad P50 P51 P70 P71
  • Four 16 GB modules populate all slots for maximum memory

Lenovo ThinkPad P-Series DDR4 Kit

This 64GB kit contains four 16GB DDR4 SO-DIMM modules built for Lenovo ThinkPad P50, P51, P70 and P71 mobile workstations. Each stick runs at 2400MHz with CL17 timings at 1.2V. The unbuffered, non-ECC design matches the factory memory specification for these systems.

Guaranteed Compatibility And Simple Installation

Computer Memory Solutions validates every module against the listed ThinkPad part numbers, including 20EN, 20EQ, 20HH, 20ER, 20ES and 20HK series. The four-stick package fills all available sockets for a straightforward upgrade without mixing capacities. Product appearance may differ from reference images.

Mobile Workstations With Four SO-DIMM Slots

Suitable for owners of the named ThinkPad models who need the maximum 64GB capacity supported by the platform. Not intended for laptops with fewer than four memory slots, systems requiring ECC or registered memory, or desktops and servers that use full-size DIMMs.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $417.99
Typical for this category: the median of 21,161 items is $397.99.
Total capacity 64 GB (4 × 16 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $6.53 per GB
Cheaper than about 60% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM2048642400SO
Total capacity64 GB (4 × 16 GB)
Product type260-Pin DDR4 SO-DIMM
Performance
Rated speedDDR4 2400 (PC4 19200)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL17
Memory timings17-17-17
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsLenovo Thinkpad P50, P51, P70, P71
In the box
Included items4 Memory RAM Sticks

Questions about this item

Will the 260-pin DDR4 modules need any periodic cleaning or replacement under normal use?

No routine cleaning or scheduled replacement is required; the modules are solid-state with no moving parts and carry a limited lifetime warranty from Computer Memory Solutions.

What limit appears first when the four 16 GB sticks run at 2400 MHz continuously?

The platform's maximum supported capacity of 64 GB across the four SODIMM slots is reached, so no further memory can be added.

How much heat and power do the 1.2 V unbuffered sticks produce during all-day workloads?

Each module operates at the standard DDR4 1.2 V without a heat spreader, so thermal output and power draw stay within normal JEDEC limits for 2400 MHz SODIMMs.

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