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Green rectangular circuit board with gold edge connector and black memory chips

OWC

OWC 4S8D51R816GB 16GB DDR5 4800 CL40 1.1V SODIMM laptop RAM

SKU CH-2AZ7-BZ6JB

16 GB DDR5-4800 SODIMM for laptops, all-in-ones and NAS systems at 1.1 V with CL40 latency

  • Total capacity16 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeUnbuffered
  • Recommended forLaptops, All-in-One Systems, and NAS Systems
  • 16GB DDR5 capacity enables smoother multitasking
  • 4800MHz speed delivers faster data throughput
  • CL40 latency supports responsive system operation
  • 1V voltage reduces power consumption
  • 262-pin SODIMM fits compatible laptops and NAS systems

16 GB DDR5 4800 SODIMM

This 16 GB DDR5 module runs at 4800 MT/s with CL40 latency and 1.1 V operation. It uses the standard 262-pin SO-DIMM form factor and is unbuffered non-ECC memory. The part is built to JEDEC and RoHS specifications for broad laptop, all-in-one and NAS compatibility.

Laptop and NAS upgrades only

The module suits owners of laptops, all-in-one PCs or NAS units that accept DDR5 SO-DIMM memory. Systems requiring registered or ECC memory cannot use this unbuffered non-ECC stick. Buyers needing capacities beyond 16 GB or a different voltage should look at other modules.

Speed decides fit

The single specification that determines compatibility is the 4800 MT/s DDR5 rating (PC5-38400). Your device must support DDR5 at this data rate with 1.1 V signalling and CL40 timing for the module to function correctly.

How it compares

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

Price $195.99
Pricier than about 78% of the 2,079 comparable items (median $70.99).
Total capacity 16 GB
Typical for this category: the median of 1,886 items is 16 GB.
Price per GB $12.25 per GB
Pricier than about 89% 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 nameOWC
Part number4S8D51R816 GB
Total capacity16 GB
Product type262-Pin DDR5 SO-DIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Memory
CAS latencyCL40
ECC supportNo
Buffer typeUnbuffered
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Recommended forLaptops, All-in-One Systems, and NAS Systems

Questions about this item

Does my laptop need a 262-pin DDR5 SO-DIMM slot to use this 16GB module?

Yes — this module is a 262-pin DDR5 SODIMM that requires a DDR5-capable laptop, all-in-one or NAS slot.

Will this CL40 DDR5-4800 stick run at its rated speed if I keep an older DDR5-4800 module in the second slot?

Both modules share the DDR5 4800 PC5-38400 specification, so the system will operate them at the common 4800 MT/s rate with CL40 timing.

How can I verify the module is detected at 4800 MT/s with CL40 after installation?

Check the memory tab in CPU-Z or the firmware/BIOS main screen — it should report 4800 MT/s, PC5-38400 and CAS latency 40 for the installed 16GB module.

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