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Two green DDR4 SO-DIMM sticks with gold contacts

Crucial

Crucial CT2K8G4SFD824A 16GB (2x8GB) DDR4 2400 SO-DIMM laptop RAM

SKU CH-9YMP-X731T MPN CT2K8G4SFD824A

16 GB dual-channel DDR4 SO-DIMM kit running at 2400 MT/s with CL17 latency and 1.20 V operation

  • Total capacity16 GB (2 × 8 GB)
  • Rated speedDDR4 2400 (PC4 19200)
  • CAS latencyCL17
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Product type260-Pin DDR4 SO-DIMM

Capacity 16GB (2 x 8GB)

  • 16 GB kit in two 8 GB modules for expanded multitasking headroom
  • DDR4 2400 speed rated at PC4 19200 for responsive system performance
  • CAS latency CL17 for quick data access timing
  • 20 V operation reduces power draw by up to 40 percent
  • 260 pin SO DIMM form factor fits standard laptop memory slots

Dual-channel 16 GB DDR4 SO-DIMM kit

This 260-pin kit delivers 16 GB of DDR4 memory as two matched 8 GB modules. It is built for notebooks and small-form-factor systems that accept SO-DIMM slots and run at 1.20 V. The CL17 latency and 2400 MHz rating suit everyday productivity and multitasking workloads. Buyers needing ECC protection or registered modules should look elsewhere.

Matched pair enables dual-channel bandwidth

The two identical modules let the memory controller run in dual-channel mode, raising practical bandwidth by up to 30 % over a single stick. Lower 1.20 V operation cuts memory power draw by up to 40 %, which helps extend battery life on mobile platforms. No heat spreader is included, so the modules fit tight chassis clearances without added height.

DDR4 2400 sets the speed ceiling

The JEDEC DDR4-2400 standard caps the maximum data rate at 2400 MT/s, so the kit cannot run faster without overclocking support that most laptops lack. CL17 timing is fixed at this speed tier; tighter latencies are not guaranteed. Systems limited to DDR4-2133 will downclock the modules automatically.

How it compares

Measured against everything we stock in Laptop RAM, at today’s prices. Recalculated every night.

Price $53.99
Cheaper than about 57% of the 2,079 comparable items (median $70.99).
Total capacity 16 GB (2 × 8 GB)
Typical for this category: the median of 1,886 items is 16 GB.
Price per GB $3.37 per GB
Cheaper than about 88% of the 1,886 comparable items (median $5.94 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 nameCrucial
Model nameCT2K8G4SFD824A
Total capacity16 GB (2 × 8 GB)
Product type260-Pin DDR4 SO-DIMM
Performance
Rated speedDDR4 2400 (PC4 19200)
Memory
CAS latencyCL17
ECC supportNo
Buffer typeUnbuffered
Heat spreaderNo
Power
Rated voltage1.2 V
Size & build
Shipping weight0.05 kg
Package size175 × 56 × 30 mm

Other versions of this model

1 more in the same range

Questions about this item

Will the CL17 latency modules need replacing if I move to a platform that requires lower CAS timing?

The kit runs at CL17; a newer platform may benefit from tighter timings, so you would replace them only if the new system demands lower latency.

What limit appears first when the 2400 MT/s SO-DIMMs run continuously at full load?

Sustained throughput is capped by the 2400 MT/s data rate and CL17 latency, which set the maximum bandwidth ceiling before any thermal throttle.

How much heat and power do the 1.20 V unbuffered modules produce during all-day operation?

Rated at 1.20 V without a heat spreader, the modules draw minimal power and generate low heat, helping battery life in typical laptop workloads.

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