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Computer Memory Solutions

Computer Memory Solutions 4GB DDR4 2400MHz CL17 SODIMM Memory Upgrade C105

SKU CH-VZ5K-ABS1F

4GB DDR4 2400MHz CL17 SODIMM module for Lenovo ThinkPad E480, E580 and L380 laptops

  • Total capacity4 GB
  • Rated speedDDR4 2400 (PC4 19200)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL17
  • Memory timings17-17-17
  • Rated voltage1.2 V
  • 4GB capacity expands multitasking headroom on supported ThinkPads
  • DDR4 2400 speed delivers 19200 MT/s data rate
  • CL17 timing at 1.2V balances responsiveness and efficiency
  • 260-pin SODIMM fits E480, E580 and L380 slots
  • Lifetime exchange warranty covers manufacturing defects

4GB DDR4 2400 SODIMM for Lenovo ThinkPad

This 4GB DDR4 2400MHz SODIMM module is built for Lenovo ThinkPad E480, E580 and L380 laptops. It delivers 260-pin DDR4 memory at 1.2V with CL17 latency for straightforward system upgrades. The single stick format suits owners who need to add capacity to an available slot.

DDR4 2400 speed ceiling and two-slot maximum

The DDR4 2400 interface caps data rate at 2400 MT/s, so the module cannot run faster even if the platform supports higher speeds. The supported ThinkPad models only provide two memory sockets and a 32GB total limit, restricting further expansion beyond two modules.

CL17 timing decides fit for latency-sensitive

The 17-17-17 timing sets the access latency at CL17, which determines responsiveness in latency-sensitive tasks. Buyers who need tighter timings for real-time audio or competitive gaming should verify this specification before purchase.

How it compares

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

Price $21.99
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 $5.50 per GB
Cheaper than about 70% 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 ThinkPad E480, ThinkPad E580, ThinkPad L380
In the box
Included items1Memory Ram Stick

Questions about this item

Should I pick the 4GB module or add a second stick to reach 32GB?

Each ThinkPad E480, E580 or L380 has two SODIMM slots and supports up to 32GB total; install one 4GB stick now and add another later if you need more capacity.

Will the 2400MHz rating actually run at that speed in my ThinkPad?

The module is rated DDR4 2400 (PC4-19200) with CL17 17-17-17 timing; the laptop's memory controller will set the final speed, but the stick is validated for that frequency at 1.2V.

Does the 260-pin DDR4 SO-DIMM fit the memory slot in a ThinkPad E480?

Yes — the 260-pin DDR4 SO-DIMM form factor matches the slot used in ThinkPad E480, E580 and L380 systems.

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