We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Green circuit board with black memory chips and gold edge connector

Computer Memory Solutions

Computer Memory Solutions CM512642400SO 4GB DDR4 2400MHz SODIMM for Lenovo IdeaPad 320/330 Series

SKU CH-J7XR-1P0H3

4GB DDR4 2400MHz SODIMM upgrades Lenovo IdeaPad 320 and 330 series laptops with 1.2V CL17 memory

  • Total capacity4 GB
  • Rated speedDDR4 2400 (PC4 19200)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL17
  • Memory timings17-17-17
  • Rated voltage1.2 V
  • 4GB capacity upgrades Lenovo IdeaPad 320 and 330 series
  • DDR4 2400MHz speed matches factory specifications for Core i models
  • CL17 latency and 1.2V voltage ensure stable operation
  • 260-pin SODIMM form factor fits laptop memory slots directly
  • 2Rx8 unbuffered design works with single-slot configurations

4GB DDR4 SODIMM for Lenovo IdeaPad

This 4GB DDR4 2400MHz SODIMM module is built for Lenovo IdeaPad 320 and 330 series laptops with Core i processors. It uses a 260-pin unbuffered non-ECC layout at 1.2V with CL17 timing. The single stick upgrades one slot in compatible 310, 320 and 330 models listed by the manufacturer.

Low-voltage operation and thermal profile

Running at 1.2V, the module draws minimal power and produces little heat during typical workloads. No heat spreader is fitted, so the stick relies on the laptop chassis airflow. The CL17 17-17-17 timing keeps latency low for everyday multitasking and office applications.

Upgrade path and when it makes sense

This 4GB stick adds capacity to systems that shipped with a single module or have a free slot, up to the platform maximum of 16GB. It suits users who need more memory for browser tabs, document editing or light creative work. Buyers whose laptop already has two populated slots or who require ECC or registered memory cannot use this module.

How it compares

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

Price $22.99
Cheaper than about 89% of the 21,161 comparable items (median $397.99).
Total capacity 4 GB
Lower than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $5.75 per GB
Cheaper than about 68% 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 nameComputer Memory Solutions
Model nameCM512642400SO
Total capacity4 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 IdeaPad 320-xxx Series (Core i), 330-xxx Series (Core i)
In the box
Included items1Memory Ram Stick

Questions about this item

How do I install the 260-pin DDR4 SODIMM in my Lenovo IdeaPad 320 or 330, and what step is often missed?

Power off, unplug, and remove the battery if accessible. Open the memory door, align the notch on the 260-pin stick with the slot key, insert at a 30-degree angle, then press down firmly until both side clips click. The step often missed is pressing evenly on both ends until the clips engage fully.

Will this CM512642400SO module need any maintenance or replacement during the laptop's life?

No routine maintenance is required. The module has no heat spreader and runs at 1.2 V. If a fault appears, Computer Memory Solutions offers a limited lifetime warranty for repair or exchange directly through them.

What is the first limit I will hit under sustained heavy workloads with this 4 GB CL17 kit?

Capacity is the first bottleneck. At 4 GB in a single socket, memory-intensive tasks will trigger swapping long before the DDR4 2400 speed or CL17 latency becomes the limiting factor.

More in Model-Specific Memory Upgrades

Similar items