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Four green circuit boards with gold contacts and black chips, no heat spreaders

OWC

OWC 64GB (4x16GB) DDR4 2400 CL17 ECC Registered RDIMM Cisco UCS B200 M4 C220 M4

SKU CH-JHJ3-J66MZ

A 64 GB kit of four 16 GB DDR4 2400 ECC registered DIMMs for Cisco UCS B200 M4 and C220 M4 servers

  • Capacity64GB (4 x 16GB)
  • Type288-Pin DDR4 ECC RDIMM
  • SpeedDDR4 2400 (PC4 19200)
  • CAS LatencyCL17
  • Voltage1.2V
  • ECCYes

Capacity 64GB (4 x 16GB)

  • ECC registered design protects data integrity in servers
  • 64 GB kit (4 × 16 GB) expands Cisco UCS B200 M4 and C220 M4 capacity
  • DDR4 2400 CL17 at 1.2 V balances speed with low power
  • 288-pin RDIMM form factor fits validated Cisco UCS slots
  • Replaces Cisco part numbers UCSMR1X161RVA and UCSMR1X161RVG

Cisco UCS DDR4 Server Memory Upgrade

This OWC kit provides 64 GB of DDR4 ECC Registered RDIMM memory across four 16 GB modules. It is designed for Cisco UCS B200 M4 and C220 M4 servers that require registered, error-correcting memory. The modules run at 2400 MHz with CL17 latency at 1.2 V.

Suited for Cisco UCS B200 M4 and C220 M4 owners

This kit fits administrators upgrading or repairing those specific Cisco platforms. It will not work in standard desktop computers, consumer laptops, or any system that requires unbuffered or load-reduced DIMMs. Builders needing different capacities, speeds, or form factors should look elsewhere.

Registered ECC RDIMM with 1Rx4 organisation

The modules use a 288-pin registered design with single-rank x4 chips and on-board ECC. This organisation is mandatory for compatibility with the target Cisco servers; mixing with unbuffered or LRDIMM memory is not supported.

Puntos fuertes

  • ECC registered design protects data integrity in servers
  • 64 GB kit (4 × 16 GB) expands Cisco UCS B200 M4 and C220 M4 capacity
  • DDR4 2400 CL17 at 1.2 V balances speed with low power
  • 288-pin RDIMM form factor fits validated Cisco UCS slots
  • Replaces Cisco part numbers UCSMR1X161RVA and UCSMR1X161RVG

Especificaciones

BrandOWC
Part Number2R4D41R4064S
Capacity64GB (4 x 16GB)
Type288-Pin DDR4 ECC RDIMM
SpeedDDR4 2400 (PC4 19200)
CAS LatencyCL17
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank1Rx4
Heat SpreaderNo
Compatible SystemCisco UCS B200 M4
Cisco UCS C220 M4

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Preguntas sobre este artículo

What comes in the OWC 64GB kit and do I need anything else to install it?

The kit contains four 16 GB DDR4 2400 CL17 ECC Registered RDIMM modules, part number 2R4D41R4064S. No extra parts are required; the modules plug directly into the 288-pin slots of a Cisco UCS B200 M4 or C220 M4 server.

Should I choose this 64 GB kit or a different capacity for my Cisco UCS server?

This kit provides 64 GB total via four 16 GB 1Rx4 modules. Select it when your B200 M4 or C220 M4 needs that exact capacity and rank configuration; choose a different kit only if your memory plan calls for another total or module size.

What does the 2400 CL17 rating mean once the memory is running in my Cisco UCS B200 M4?

The modules operate at DDR4 2400 MT/s with CAS latency 17 at 1.2 V. In the B200 M4 or C220 M4 they deliver PC4-19200 bandwidth with ECC error correction and registered signalling for server-grade stability.

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