HGCHIPS 64GB DDR5-5600 ECC RDIMM (HGD5R series) is the pin-to-pin compatible replacement for SK hynix HMCG94AGBRA184N — the 2Rx4, CL46, PC5-44800 server module built on SK hynix 16Gb DDR5 DRAM, qualified in Dell PowerEdge R660/R760, HPE ProLiant Gen11 and Lenovo ThinkSystem V3 platforms. The HMCG94AGBRA family ships under several trailing suffixes (181N / 182N / 184N) that identify production and qualification batches; the electrical specification is identical across suffixes. The 64GB 5600 tier is the highest-volume server DRAM point of 2026 and carries a live spot market: broker listings for the family cluster around US$3,500–3,900 per module with the Samsung 64GB 5600 sibling at US$3,461 (215 pcs, 3–4 day lead, Oct 2026). The HGCHIPS replacement ships from Shenzhen stock at ¥21,800/pc tax included (≈ US$3,060) — about 12% below the spot mid — within 48 hours, every lot functionally tested on a DDR5 platform with traceable records. Small-batch board validation before full import is recommended; samples ship immediately.
| Reference part number | SK hynix HMCG94AGBRA184N (64GB 2Rx4 DDR5-5600, CL46) |
|---|---|
| HGCHIPS series | HGD5R — DDR5 RDIMM replacement series (full P/N via FAE) |
| Memory technology | DDR5 SDRAM (built on SK hynix 16Gb DDR5 DRAM) |
| Capacity | 64GB |
| Data rate | 5600 MT/s (PC5-44800) |
| CAS latency | CL46 |
| Module type | RDIMM (Registered ECC) |
| Rank / organization | 2Rx4 (dual-rank x4) |
| Voltage | 1.1V |
| Form factor | 288-pin RDIMM |
| Signal integrity | CRC, Decision Feedback Equalization (DFE), ZQ calibration, Multi-Purpose Command (MPC) |
| Suffix note | 181N / 182N / 184N suffixes identify production and qualification batches — electrical specification identical across suffixes |
| OEM platform qualification | Dell PowerEdge R660/R760, HPE ProLiant Gen11, Lenovo ThinkSystem V3 (per channel distributor) |
| Operating temperature | 0°C to +85°C (per distributor spec sheets) |
Electrical parameters referenced from SK hynix HMCG94AGBRA family spec sheets (intechnologies.co / mozelectronics.com / oempcworld.com, checked 2026-11-14); HGCHIPS replacement parameters verified to match the reference profile. Market signals retrieved 2026-11-14; dates shown per row.
| Signal | Detail | Source & date |
|---|---|---|
| Qualified-platform pull | Channel distributor InTechnologies notes the HMCG94AGBRA family is qualified in Dell PowerEdge R660/R760, HPE ProLiant Gen11 and Lenovo ThinkSystem V3, and is bought for 4th/5th Gen Xeon Scalable and EPYC 9004/9005 nodes — the broadest-installed server base of any 64GB DDR5 point. | intechnologies.co product page, checked 2026-11-14 |
| Broker spot levels | US broker GotoDirect lists the family (HMCG94AGBRA181N, refurbished) at US$3,735.20 in stock; the Samsung 64GB 5600 sibling M321R8GA0PB0-CWM trades at US$3,461 with 215 pcs and 3–4 day lead (CoreWave, Oct 2026) — the tier runs at an elevated, allocation-style spread. | gotodirect.com / corewavelabs.com listings, Oct 2026 (retrieved 2026-11-14) |
| Contract market tightening | TrendForce-tracked Q4 DRAM contract prices are rising another 10–15% on server DDR5/RDIMM demand as AI memory upsizing continues — 64GB RDIMM is the volume point most exposed to the squeeze. | trendforce.com press coverage, Nov 2026 |
| HGCHIPS price position | ¥21,800/pc tax incl. (≈ US$3,060) vs. spot-market reference ≈ US$3,461 (Samsung 64GB 5600 sibling, broker mid) — about 12% below; 48h Shenzhen shipment; lot test records provided. | HGCHIPS price list, Nov 2026 |
Yes — same 288-pin RDIMM form factor, 2Rx4 organization and CL46 speed profile; current Intel Xeon and AMD EPYC platforms identify it without board or firmware changes. We recommend a small-batch board validation (samples available) before full production import.
Per SK hynix channel documentation, the trailing suffix identifies production and qualification batches (for example, the 181N suffix is the Dell-qualified version). The electrical specification is identical across suffixes — send your exact BOM line and we confirm suffix equivalence in writing.
Yes — the three vendors' 64GB 2Rx4 DDR5-5600 RDIMMs are cross-qualified on the same platforms; procurement teams routinely second-source among them. Our module covers the same speed/rank point; platform validation records are available per lot.
Send your BOM line, target quantity and delivery terms — engineering review and firm price back within 24 business hours.
Request a Quote info@hgtech.ccADI LTM4702 — 8A Silent Switcher 3 µModule (watch page) · ADI LTM4703 replacement — HGCHIPS HG4703 12A µModule · ADI LTM4707 replacement — HGCHIPS HG4707 16A µModule · ADI LTM4705 replacement — HGCHIPS HG4705 dual 5A / single 10A µModule · ADI LTM4710-1 replacement — HGCHIPS HG4710-1 quad 8A Silent Switcher µModule · Micron 512GB DDR5 RDIMM replacement — 512GB TSV RDIMM (pre-booking) · Samsung M321R8GA0BB0-CQK replacement — 64GB DDR5-4800 RDIMM · Samsung M321RYGA0PB2-CCP replacement — 96GB DDR5-6400 RDIMM · Samsung M321RAJA0MB0-CWM replacement — 128GB DDR5-5600 RDIMM · Samsung M321RBJA0M22-CLP replacement — 256GB DDR5-6400 RDIMM · All part numbers · Cross reference