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Green rectangular circuit board with gold edge connectors and black memory chips

Kingston Technology Corp.

Kingston Technology Corp. KTH-PL556S8-16G 16GB DDR5 5600 CL46 1.10V ECC Registered 288-pin RDIMM server RAM

SKU CH-90GZ-JR4BE MPN KTH-PL556S8-16G

16 GB DDR5-5600 registered ECC RDIMM at CL46 and 1.10 V for server workloads

  • Total capacity16 GB
  • Rated speedDDR5 5600 (PC5 44800)
  • CAS latencyCL46
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • Memory rank1Rx8
  • ECC protection prevents data corruption in critical workloads
  • 5600 MHz DDR5 speed accelerates server throughput
  • Registered design stabilises signals on dense memory buses
  • 10 V operation reduces platform power draw
  • Single-rank 1Rx8 layout optimises channel efficiency

Server RDIMM for ECC workloads

This Kingston KTH-PL556S8-16G module provides 16GB of DDR5 memory in a 288-pin registered DIMM format. It is built for servers and workstations that require error-correcting code protection for data integrity.

Registered ECC with CL46 latency

The module operates at DDR5 5600 speed with a CAS latency of CL46 and runs at 1.10V. Registered signal processing and on-die ECC support help maintain stability under sustained loads in multi-socket platforms.

Suits single-rank DDR5-5600 server builds

It fits systems that accept 1Rx8 registered DDR5 DIMMs at this voltage and pin count. Builders needing higher capacities per slot, lower latency timings, or non-ECC unbuffered memory for consumer platforms should look elsewhere.

How it compares

Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.

Price $480.99
Pricier than about 70% of the 6,523 comparable items (median $188.99).
Total capacity 16 GB
Lower than about 60% of the 6,064 comparable items (median 32 GB).
Price per GB $30.06 per GB
Pricier than about 90% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameKingston
Model nameKTH-PL556S8-16G
Total capacity16 GB
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 5600 (PC5 44800)
Memory
CAS latencyCL46
ECC supportYes
Buffer typeRegistered
Memory rank1Rx8
Heat spreaderNo
Power
Rated voltage1.1 V
Size & build
Shipping weight0.23 kg
Package size152 × 51 × 3 mm

Questions about this item

How does the 5600 MT/s speed translate to real-world throughput in a server?

The module runs at DDR5-5600, delivering up to 44800 MB/s of peak bandwidth per channel when the platform is configured for that data rate.

What does the PC5-44800 designation cap in practice?

PC5-44800 is the JEDEC standard name for DDR5-5600; it defines the maximum rated transfer rate and timing envelope the DIMM is validated to meet.

Will the 288-pin RDIMM form factor fit my server's memory slots?

Yes, this is a standard 288-pin DDR5 RDIMM (1Rx8, registered, ECC) designed for server and workstation DIMM sockets that accept registered modules.

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