Technical Snapshot

The Kingston Server Premier DDR4 8GB 2666MT/s RDIMM RDIMM — KSM26RS8/8MRR is a server-grade DDR4 RDIMM memory module designed for enterprise servers and workstations. Running at 2,666 MT/s with CL19-19-19-42 timings at 1.2V, it supports RDIMM profiles for one-click speed optimization in compatible BIOS. The module provides 8GB of DDR4 memory . Backed by a Limited Lifetime warranty, this module targets server deployments, virtualization hosts, and high-availability computing environments requiring ECC error correction.

Use Case: Server deployments, virtualization, high-availability computing
Compatibility: RDIMM-compatible server motherboard
Category: DDR4 RDIMM — Kingston Server Premier

Kingston RAM

Kingston Server Premier

Server Premier DDR4 8GB 2666MT/s RDIMM RDIMM — KSM26RS8/8MRR

Name: Kingston Server Premier DDR4 8GB 2666MT/s RDIMM RDIMM — KSM26RS8/8MRR
Brand: Kingston
SKU: KSM26RS8/8MRR

DDR4 · RDIMM · 2,666 MT/s · CL19-19-19-42 · 8GB

Speed 2,666 MT/s

Capacity 8GB

Timings CL19-19-19-42

Profile RDIMM

MPNKSM26RS8/8MRR

EAN740617324891

CategoryMemory

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Memory Specifications

Memory TypeDDR4

Form FactorRDIMM

Total Capacity8GB

Speed2,666 MT/s

TimingsCL19-19-19-42

Voltage1.2V

XMP/EXPO ProfileRDIMM

ECCYes

Module Height31.25 mm

WarrantyLimited Lifetime

Full Specifications

Data sourced from Kingston product specifications

Memory
Product Line	Server Premier
Memory Type	DDR4
Form Factor	RDIMM
Total Capacity	8GB
Module Count	1
Module Capacity	8GB
Speed	2,666 MT/s
Timings & Voltage
Timings	CL19-19-19-42
Voltage	1.2V
XMP/EXPO Profile	RDIMM
ECC	Yes
Design
Color	Green
Module Height	31.25 mm
Product
Brand	Kingston
MPN	KSM26RS8/8MRR
EAN	740617324891
Warranty	Limited Lifetime
Variant	On-Die ECC \| 1Rx8 \| MRR
Physical
Weight	0.091 kg
Package Dimensions	14.0 x 8.0 x 1.0 cm (estimated)

Support

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Kingston Server Premier DDR4 8GB 2666MT/s RDIMM RDIMM — KSM26RS8/8MRR DatasheetPDF · Technical specifications

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Frequently Asked Questions

What motherboards are compatible with this memory?

The Kingston Server Premier DDR4 8GB 2666MT/s RDIMM RDIMM — KSM26RS8/8MRR requires a DDR4-compatible motherboard. Compatible platforms include AMD AM4 (B550, X570, B450, etc.) and Intel LGA 1700 (B660, Z690) or LGA 1200 (B560, Z590). DDR4 is NOT compatible with DDR5 slots — they use different pin configurations.

Do I need to enable RDIMM in BIOS?

Yes. Out of the box, DDR4 memory runs at JEDEC default speed (typically 2133 MT/s). To achieve the rated 2,666 MT/s with CL19-19-19-42 timings, enable RDIMM in your motherboard BIOS. This is a one-click setting in the memory overclocking section.

Can I add more memory later?

Yes, the Kingston Server Premier DDR4 8GB 2666MT/s RDIMM RDIMM — KSM26RS8/8MRR is a single 8GB module. You can add additional compatible DDR4 RDIMM modules to populate empty slots. For best performance, use matched modules of the same speed and capacity to enable dual-channel mode.

Does this memory support ECC error correction?

Yes, the Kingston Server Premier DDR4 8GB 2666MT/s RDIMM RDIMM — KSM26RS8/8MRR includes ECC (Error-Correcting Code) support, which detects and corrects single-bit memory errors. This is essential for servers, workstations, and mission-critical applications where data integrity is paramount.

What warranty does this memory come with?

The Kingston Server Premier DDR4 8GB 2666MT/s RDIMM RDIMM — KSM26RS8/8MRR comes with a Limited Lifetime warranty from Kingston.

JSON-LD Structured Data — Product + FAQ + Breadcrumb

Product: Kingston Server Premier DDR4 8GB 2666MT/s RDIMM RDIMM — KSM26RS8/8MRR
MPN: KSM26RS8/8MRR
Schemas: Product + BreadcrumbList + FAQPage
Properties: 13 additionalProperty entries
Related: 4 isRelatedTo links