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Green rectangular circuit board with gold contacts and black memory chips

Axiom

Axiom 863953-B21-AX 16 GB DDR4 SoDIMM 260-pin 2400 MHz CL17 1.2 V ECC memory upgrade

SKU CH-YDQG-NTVYX

16 GB DDR4 SoDIMM with ECC, 2400 MHz CL17 and 1.2 V for compatible systems

  • 16 GB DDR4 capacity expands laptop memory for multitasking
  • ECC error correction protects data integrity in critical workloads
  • 2400 MHz DDR4-2400 speed delivers responsive system performance
  • 2 V low-voltage operation reduces power draw and heat
  • 260-pin SoDIMM form factor fits compatible notebook slots

System-Specific DDR4 ECC Upgrade

This 16 GB DDR4 SoDIMM module delivers error-correcting code memory for compatible laptops and compact workstations. It operates at 2400 MHz with a CAS latency of CL17 and a low 1.2 V supply. The unbuffered design suits systems that require ECC protection without registered modules.

Compatibility Verification Steps

Confirm your platform accepts 260-pin DDR4 SoDIMMs running at the PC4-19200 standard with ECC enabled in the BIOS. Verify the motherboard supports unbuffered ECC modules rather than registered variants. Check that the memory controller can operate at 1.2 V and the correct 2400 MHz data rate before ordering.

Thermal Noise and Power Profile

Standard DDR4 voltage of 1.2 V keeps power draw low during typical workloads. The module runs passively without a fan, so it adds no audible noise to the system. RoHS certification confirms the components meet restricted-substance limits for environmentally responsible operation.

How it compares

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

Price $271.99
Cheaper than about 55% of the 21,161 comparable items (median $397.99).

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 nameAXIOM

Questions about this item

What comes in the box with the 863953-B21-AX module?

The box contains one 16 GB DDR4 SoDIMM rated at 2400 MHz CL17 1.2 V with ECC; no cables, brackets or tools are included.

Why choose this 16 GB 2400 MHz CL17 ECC stick over another capacity or speed?

Select this part when the service manual calls for a single 16 GB PC4-19200 ECC SoDIMM; other capacities or speeds will not match that specification.

What does the 2400 MHz rating mean once the module is installed?

The memory bus will run at 2400 MT/s with CL17 latency at 1.2 V, delivering PC4-19200 bandwidth and ECC error correction for the platform.

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