Where to Find 4GB DDR2 RAM for PC Suppliers?

China remains a central hub for legacy and current-generation memory module production, with key manufacturing clusters in Shenzhen and Chongqing enabling cost-effective sourcing of 4GB DDR2 RAM for PC. Shenzhen's electronics ecosystem supports high-volume output through vertically integrated supply chains, offering access to both new and refurbished components. The region’s proximity to component foundries and testing facilities allows suppliers to maintain competitive pricing while meeting international export standards.

These industrial zones specialize in DRAM module assembly, reconditioning, and quality validation, providing buyers with flexibility in product condition (new vs. used), packaging, and compatibility testing. Economies of scale reduce per-unit costs, particularly for bulk orders above 50 pieces. Lead times typically range from 7–15 days for in-stock items, with air freight options enabling delivery within 5–10 business days globally. Buyers benefit from established logistics networks that support FOB and CIF shipping terms, along with transaction protection mechanisms for cross-border procurement.

How to Choose 4GB DDR2 RAM for PC Suppliers?

Effective supplier selection requires verification across technical, operational, and transactional dimensions:

Product Specification Accuracy
Confirm exact DDR2 specifications including speed (e.g., 667MHz, 800MHz), voltage (1.8V standard), and form factor (DIMM for desktop or SO-DIMM for laptop). Verify compatibility with common chipsets such as Intel 945GC or AMD AM2 platforms. Mismarked or downgraded modules are prevalent; demand test reports validating timing parameters and stability under load.

Quality Assurance Protocols
Prioritize suppliers who conduct 100% functional testing using automated burn-in systems. Look for evidence of standardized grading processes for used modules, including surface inspection, thermal cycling, and data retention checks. While formal ISO 9001 certification is not universally present among smaller vendors, consistent on-time delivery rates (>95%) and low reorder rates (<20%) indicate reliable internal controls.

Order Flexibility and Risk Mitigation
Assess minimum order quantities (MOQs), which vary significantly—from 2 pieces to 100+—impacting sample acquisition and small-batch procurement. Favor suppliers offering third-party transaction security or escrow services. Request pre-shipment samples to validate performance and labeling accuracy before scaling orders. Evaluate response time (ideally ≤6 hours) as an indicator of post-sale support readiness.

What Are the Best 4GB DDR2 RAM for PC Suppliers?

Performance Analysis
Shenzhen Macroway stands out with the highest online revenue and a 48% reorder rate, indicating strong customer retention and market trust, despite slightly longer response times. Its ultra-low price point ($0.30/unit at MOQ 50) suggests access to surplus or recycled chips, suitable for budget-sensitive deployments. Century Huaxiang and Shenzhen Funoshen offer the lowest MOQs (as low as 2 units), making them ideal for sampling and niche retrofits. All top-performing suppliers maintain 100% on-time delivery except Chongqing Maishengyi (93%), though its higher pricing reflects focus on newer DDR4 lines rather than core DDR2 stock. Suppliers with response times under 4 hours demonstrate superior communication infrastructure, critical for resolving technical discrepancies during integration.

FAQs

How to verify 4GB DDR2 RAM module authenticity?

Cross-check part numbers against manufacturer datasheets (e.g., Samsung M378T2863QZS-CE6, Hynix HYMP112U64CP8-S6). Use software tools like CPU-Z or MemTest86 to validate reported capacity, speed, and SPD data. Request batch test logs or video verification of power-on testing prior to shipment.

What is the typical lead time for bulk DDR2 RAM orders?

Standard lead time ranges from 7–15 days for available inventory. For customized labeling or extended warranties, allow up to 21 days. Air freight adds 5–10 days for international delivery, depending on destination region.

Can suppliers provide mixed batches of new and used RAM?

Yes, several suppliers explicitly list both new and tested used modules. Clearly specify desired grade (A/B/C) and require segregation by condition. Used modules should undergo full diagnostic screening with failure rates below 3%.

Are there customization options for branding or packaging?

Select suppliers offer OEM services including custom heat spreaders, label printing, and retail box design. Minimum volumes typically start at 500 units. Confirm material compliance (RoHS) and logo reproduction accuracy during sample approval.

What payment terms are common for first-time buyers?

New buyers commonly face T/T (bank transfer) or secured platform payments with partial upfront deposits (30–50%). Escrow arrangements reduce financial risk, especially for orders exceeding $1,000. Letters of Credit (L/C) are rare for this product category due to lower unit value.