16GB DDR4-2400 PC4-19200 1Rx4 1.2V ECC Registered RDIMM 288-Pin Server Memory RAM

This 16GB DDR4 server memory module is a 1Rx4 ECC Registered RDIMM designed for enterprise servers and workstations that require registered (buffered) DDR4 ECC memory. It operates at DDR4-2400 (PC4-19200) and will typically downclock automatically if your platform supports a lower DDR4 speed.

Technical Specifications

• Memory Type: DDR4 SDRAM
• Capacity: 16GB
• Module Type: ECC Registered RDIMM (Buffered)
• Form Factor: 288-Pin DIMM
• Rank / Organization: 1Rx4
• Data Width: x72 (ECC)
• Speed: 2400 MT/s (DDR4-2400)
• Data Rate: PC4-19200
• CAS Latency: CL17
• Voltage: 1.2V
• Error Correction: ECC (Error-Correcting Code)
• Operating Temperature: 0°C to 85°C
• Height: Standard (approx. 30mm)

Interchangeable / Replacement Part Numbers

M393A2K40BB1-CRC, M393A2K40BB1-CRC0Q, M393A2K40BB1-CRC4Q, 809082-591, 809082-091, 15-104066-01, CA07855-D511, 7341582

✅ Confirmed Compatibility

Please note that the following list is not exhaustive. Compatibility depends on your system's specific configuration. It's essential to verify compatibility with your system or motherboard manufacturer prior to installation.

✔️ PowerEdge Rack Servers: R430, R530, R630, R730, R730xd, R440, R540, R640, R740, R740xd, R840, R940
✔️ PowerEdge Tower Servers: T430, T440, T630, T640
✔️ ProLiant Rack Servers: DL360 Gen9, DL380 Gen9, DL560 Gen9, DL160 Gen10, DL180 Gen10, DL360 Gen10, DL380 Gen10, DL560 Gen10
✔️ ProLiant Tower Servers: ML110 Gen10, ML350 Gen9, ML350 Gen10
✔️ ThinkSystem Rack Servers: SR530, SR550, SR570, SR590, SR630, SR650, SR850, SR950
✔️ ThinkSystem Tower Servers: ST250
✔️ UCS Rack Servers: UCS C220 M4, UCS C240 M4, UCS C220 M5, UCS C240 M5
✔️ UCS Blade Servers: UCS B200 M4, UCS B200 M5
✔️ Supermicro Platforms: X10/X11 server boards and SuperServer chassis that support DDR4 ECC Registered RDIMM memory
✔️ PRIMERGY Servers: RX1330 (DDR4 platforms), RX2540 (DDR4 platforms), TX1330 (DDR4 platforms), TX2550 (DDR4 platforms)

☑️ Key Features

☑️ 16GB DDR4 server memory for enterprise systems
☑️ ECC Registered (RDIMM) for reliability and stability
☑️ 1Rx4 organization commonly required in many server configs
☑️ Optimized for servers/workstations that need buffered ECC memory
☑️ DDR4-2400 (PC4-19200) performance class

⚙️ Fit Notes

• RDIMM vs UDIMM matters: This is ECC Registered RDIMM (buffered). It will not work in systems that require UDIMM/SODIMM memory.
• 1Rx4 vs 2Rx8: Some platforms are picky about rank/organization. Match what your server supports (or what you’re replacing) whenever possible.
• Speed behavior: A 2400 module can often run at 2133/1866/etc. if the platform only supports lower speeds (it will downclock automatically).