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Green 204-pin DDR3L SO-DIMM module with black chips

Crucial

Crucial CT51264BF186DJ 4GB DDR3L 1866 laptop RAM

SKU CH-XP5J-C88GW MPN CT51264BF186DJ

A 4 GB DDR3L laptop module running at 1866 MT/s with CL13 latency and 1.35 V operation

  • Capacity4GB
  • Type204-Pin DDR3 SO-DIMM
  • SpeedDDR3L 1866 (PC3L 14900)
  • CAS LatencyCL13
  • Voltage1.35V
  • ECCNo

Capacity 4GB

  • 4GB capacity adds responsive multitasking headroom for everyday workloads
  • DDR3L 1866 MT/s speed delivers quick data transfer rates
  • Low 1.35V voltage reduces power draw and heat output
  • CL13 latency provides snappy memory access times
  • 204-pin SO-DIMM form factor fits standard laptop memory slots

What this product is

This is a new Crucial 4GB DDR3L 1866 laptop memory module in a 204-pin SO-DIMM form factor. It runs at 1.35V with a CAS latency of CL13 and carries the PC3L 14900 designation. The kit is sold in a retail package as a single standard-edition stick.

Who this suits

The module fits laptops that accept DDR3L SO-DIMM memory at 1866 MT/s and can operate at the rated 1.35V voltage. Buyers whose systems require a different pin count, a higher or lower speed grade, or ECC and registered memory cannot use this part.

The specification that decides fit

The 204-pin DDR3L SO-DIMM interface combined with the 1866 MT/s speed and 1.35V operating voltage is the single specification that determines whether this module will work in a given laptop.

Highlights

  • 4GB capacity adds responsive multitasking headroom for everyday workloads
  • DDR3L 1866 MT/s speed delivers quick data transfer rates
  • Low 1.35V voltage reduces power draw and heat output
  • CL13 latency provides snappy memory access times
  • 204-pin SO-DIMM form factor fits standard laptop memory slots

Specifications

BrandCrucial
ModelCT51264BF186DJ
Capacity4GB
Type204-Pin DDR3 SO-DIMM
SpeedDDR3L 1866 (PC3L 14900)
CAS LatencyCL13
Voltage1.35V
ECCNo
Buffered/RegisteredUnbuffered
FeaturesRetail package
Recommend UseHigh Performance or Gaming Memory
OptionStandard Edition
Shipping weight0.05 kg
Package size177 × 123 × 13 mm

Other versions of this model

1 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

What speed and bandwidth does the DDR3L 1866 (PC3L 14900) interface deliver?

The module runs at 1866 MT/s with a PC3L 14900 bandwidth rating, operating at 1.35 V standard voltage.

Which slot and pin count does the 204-pin SO-DIMM need to fit?

It requires a standard laptop DDR3 SO-DIMM socket with 204 pins; the low-profile circuit board fits typical notebook memory bays.

How do you install the SODIMM and what step do people often miss?

Power off the laptop, open the memory door, align the notch on the 204-pin edge connector, insert at an angle and press down until both retention clips click securely.

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

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