DDR4 Server Memory
JH-E4 / R4 / L4 · ECC UDIMM / RDIMM / LRDIMM · 3200 MT/s
JH Semiconductor DDR4 server memory — ServerCore RDIMM (JH-R4), EntryECC UDIMM (JH-E4) and ServerDensity LRDIMM (JH-L4), 3200 MT/s, 16 GB–128 GB, with fixed BOM and 100% burn-in, for legacy servers, domestic-CPU replacement, databases and high-capacity virtualization. 5-year warranty.
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Product Models
Specification Comparison
| Model | Type | Interface | Capacity | Key Specs |
|---|---|---|---|---|
| DDR4 ECC RDIMM | DDR4 | ECC RDIMM | 16 / 32 / 64GB | 3200 MT/s |
| DDR4 ECC UDIMM | DDR4 | ECC UDIMM | 16 / 32GB | 3200 MT/s |
| DDR4 (3DS) LRDIMM | DDR4 | ECC LRDIMM (incl. 3DS) | 64 / 128GB | 3200 MT/s |
Fixed base model: model numbers do not change with DRAM/RCD/PMIC vendors; supply variants use only G/D and hardware-revision suffixes
Fixed BOM: no mixing of dies, RCD, PMIC or PCB within one order/batch; any change goes through PCN
G-then-D: international-vendor BOM closes compatibility and delivery first; localized BOM is qualified in parallel and released as the D version
Platform QVL: every "Intel/AMD/domestic-CPU compatible" claim maps to a specific server/board model and test record
100% inspection, per-module burn-in and batch traceability, 5-year limited warranty
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