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Green circuit board with black memory chips and gold contacts

Lenovo

Lenovo 4X70K09921 8GB DDR4 2133MHz memory upgrade

SKU CH-H7XF-5CWBC MPN 4X70K09921

8GB DDR4 2133MHz UDIMM module for compatible Lenovo ThinkCentre and ThinkStation desktops

  • Total capacity8 GB
  • Rated speedDDR4 2133 (PC4 17000)
  • Buffer typeUnbuffered
  • Product type288-Pin DDR4 SDRAM
  • Compatible systemsLenovo
  • Key featuresAdding more memory increases system performance. The Lenovo
  • Boosts multitasking capacity with 8 GB DDR4 2133 MHz
  • Low 1.2 V operation reduces system power draw
  • Unbuffered non-ECC design suits desktop workloads
  • 288-pin DIMM fits ThinkCentre M700 M800 M900 and ThinkStation P310
  • Tested 100 % compatible with listed Lenovo systems

Lenovo 8GB DDR4 2133MHz UDIMM

This 8GB DDR4 2133MHz unbuffered non-ECC module is built for Lenovo ThinkCentre M700, M800, M900 and ThinkStation P310 systems. It plugs into a standard 288-pin DIMM slot and runs at 1.2 V. Buyers who need ECC protection or registered memory cannot use this module.

Compatibility verified for listed systems

Lenovo states 100 % test-proven compatibility for the ThinkCentre M700, M800, M900 and ThinkStation P310. Adding this memory lets the system run more programs at once and improves responsiveness. No heat spreader is included, so airflow in the chassis handles cooling.

Check slot count and maximum capacity

Confirm your motherboard has a free 288-pin DDR4 slot and check the system documentation for the maximum supported memory per slot and in total. The module operates at DDR4 2133 (PC4-17000); mixing speeds will cause all modules to run at the lowest common speed.

How it compares

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

Price $116.99
Cheaper than about 66% of the 21,161 comparable items (median $397.99).
Total capacity 8 GB
Lower than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $14.62 per GB
Pricier than about 61% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameLenovo
Model name4 × 70K09921
Total capacity8 GB
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR4 2133 (PC4 17000)
Memory
ECC supportNo
Buffer typeUnbuffered
Heat spreaderNo
Size & build
Shipping weight0.06 kg
Package size175 × 60 × 20 mm
Compatibility
Compatible systemsLenovo

Questions about this item

Will the 288-pin DDR4 module need any maintenance or replacement during the system's life?

The 8 GB DDR4 2133 MHz UDIMM has no heat spreader and no moving parts, so it requires no routine maintenance and is not a wear item under normal use.

What limit appears first when the 8 GB DDR4 2133 MHz kit runs sustained workloads?

The 8 GB capacity ceiling is reached before the PC4-17000 bandwidth limit, so multitasking headroom runs out first.

How much heat and power does the 1.2 V DDR4 2133 MHz stick produce in all-day operation?

At 1.2 V the unbuffered DDR4 module draws low power and runs cool enough for continuous use in ThinkCentre M700, M800, M900 and ThinkStation P310 chassis.

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