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647883-B21 — Memory Specs & Substitutes

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Hypertec · DIMM
WHAT YOU NEED TO KNOW
2Rx4 = Dual Rank ×4 chip width (standard server) RDIMM = Registered (servers) | LRDIMM = Load-Reduced (max density)
DDR3 ≠ DDR4 ≠ DDR5 — physically incompatible (notch position)
PRODUCT OVERVIEW

Hypertec 647883-B21 memory module 16 GB 1 x 16 GB DDR3 240-pin DIMM ECC. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
647883-B21
SPECIFICATIONS
Part Number647883-B21
ManufacturerHypertec
InterfaceDDR3
Capacity16GB
COMPONENT DIAGRAM
ECC 16GB 2Rx4 PC3 — RDIMM Hyper NOTCH ~133.35 mm DDR3 RDIMM | 16GB | — | PC3 Notch position = DDR3 generation | DDR3/DDR4/DDR5 physically incompatible RDIMM = Registered (servers) | LRDIMM = Load-Reduced | UDIMM = Unbuffered TITLE DDR3 RDIMM PN 647883-B21 MFR Hypertec 16GB —
KEY FEATURES
•
DDR3 Interface
•
16GB Capacity
•
DDR3 Memory
TYPICAL APPLICATIONS
  • Server memory expansion for virtualization workloads
  • Database performance optimization (in-memory computing)
  • VDI and remote desktop session hosting
  • High-performance computing (HPC) clusters
  • Mail server and collaboration platform scaling
  • Application server tier expansion
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
687464-001Compatible
HP 16GB Pc3l-10600r 1333MHZ ECC Reg Dr X4 Cas-9 Lv Dimm - AMD - G8
compatible
647653-181Compatible
HP 16GB Pc3l-10600r 1333MHZ ECC Reg Dr X4 Cas-9 Lv Dimm - AMD - G8
compatible
LIFECYCLE
StatusUNKNOWN
Availability—
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
THIS PART SUBSTITUTES FOR 2
647653-181SUBSTITUTE
HP 16Gb PC3L-10600R 1333Mhz ECC REG DR x4 CAS-9 LV DIMM - AMD - G8
HPE
687464-001SUBSTITUTE
HP 16Gb PC3L-10600R 1333Mhz ECC REG DR x4 CAS-9 LV DIMM - AMD - G8
HPE
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FREQUENTLY ASKED QUESTIONS
What is 647883-B21?
647883-B21 is a Hypertec 647883-B21 memory module 16 GB 1 x 16 GB DDR3 240-pin DIMM ECC manufactured by Hypertec.
What parts can replace 647883-B21?
There are 2 known substitutes for 647883-B21: 687464-001, 647653-181. Substitute compatibility should be verified for your specific system.
Is 647883-B21 still available?
647883-B21 is currently Unknown.
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Last verified: September 2026