Crucial 8GB DDR5 4800MHz SODIMM Single 8GB DDR54800 SODIMM laptop memory module, CL40 (403939), 1.1V, unbuffered nonECC, 262pin, with ondie ECC and onmodule PMICcompatible with DDR5capable laptops and smallformfactor systems that support JEDEC 4800MHz SODIMMs.
Product Overview
The Crucial CT8G48C40S5.M4A1 is an entrylevel DDR5 laptop memory module designed to upgrade or expand system memory in modern notebooks and compact PCs. It runs at the JEDEC baseline speed of 4800 MT/s (DDR54800 / PC538400) with CAS latency CL40 and timings 403939, at a low 1.1V operating voltage. As a 1Rx16, 8GB (1×8GB) unbuffered, nonECC SODIMM, it's intended for general productivity, web browsing, office work, and light multitasking rather than highend gaming or workstation workloads. Being DDR5, it includes ondie ECC (ODECC) for improved data integrity inside the DRAM chips and an integrated power management IC (PMIC) on the module for more stable voltage regulation compared with DDR4. The 262pin SODIMM form factor is standard for currentgeneration laptops and some miniPCs that explicitly support DDR5 SODIMMs. Compatibility should always be verified against the laptop/PC manufacturer's QVL or spec sheet (max supported speed, rank, and capacity per slot).
Key Features
8GB DDR5 SODIMM Single 8GB module for laptops and smallformfactor PCs.
4800 MHz (PC538400) JEDEC baseline DDR5 speed, plugandplay with compatible systems.
CL40 (403939) Standard latency for DDR54800 modules.
1.1V Operation Lower voltage than DDR4 for improved efficiency.
Unbuffered, NonECC Typical for consumer laptops; not for servers/workstations requiring registered/ECC RAM.
OnDie ECC (ODECC) Internal error correction within DRAM for better data integrity.
OnModule PMIC Integrated voltage regulation for more stable DDR5 operation.
262Pin SODIMM Standard laptop/smallPC DDR5 form factor.
Specifications
- Product Code: CT8G48C40S5.M4A1
- Product Description:
- Capacity: 8GB (1×8GB)
- Memory Type: DDR5 SODIMM
- Speed: DDR54800 (4800 MHz), PC538400
- CAS Latency: CL40
- Timings: 403939
- Voltage: 1.1V (DDR5 core); 5V external rail for module
- Rank/Organization: 1Rx16
- ECC: NonECC (uservisible), with ondie ECC inside DRAM
- Buffering: Unbuffered (unregistered)
- Form Factor: 262pin SODIMM
- Intended Use: DDR5compatible laptops and smallformfactor PCs (check OEM QVL)
