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Green rectangular 240 pin DIMM module with black chips and silver edge connectors

A-Tech

A-Tech 32GB DDR3L 1066 ECC RDIMM 4Rx4 HP 627810-B21 627814-S21 628975-181 632203-001 632208-001 Server Memory

SKU CH-KSSK-XG1KD

32 GB DDR3L 1066 ECC registered DIMM with 4Rx4 organisation and 1.35 V low-voltage operation

  • Capacity32GB
  • SpeedDDR3L 1066 (PC3L 8500)
  • CAS LatencyCL7
  • Voltage1.35V
  • ECCYes
  • Buffered/RegisteredRegistered
  • High-capacity 32GB module handles heavy server workloads
  • Low-voltage DDR3L at 1.35V reduces power draw
  • ECC registered design protects data integrity
  • 240-pin DDR3 form factor fits compatible HP systems
  • Tested replacement for HP part numbers 627810-B21, 627814-S21, 628975-181, 632203-001, 632208-001

Server-grade 32GB DDR3L ECC module

This 32GB DDR3L 1066 ECC RDIMM uses a registered 4Rx4 design and runs at 1.35V. It is built for servers and workstations that require error-correcting registered memory. The module suits administrators upgrading HP systems referencing part numbers such as 627810-B21 or 632208-001. Buyers needing non-ECC or unbuffered DIMMs should look elsewhere.

240-pin registered DIMM for compatible HP platforms

The DIMM plugs into a standard DDR3 240-pin slot and presents a single 32GB rank configuration to the memory controller. Registered buffering reduces electrical load on the bus, freeing the platform to populate more slots per channel. ECC circuitry corrects single-bit errors without halting the system. Systems that do not support registered ECC DDR3L cannot use this module.

CL7 latency at sustained 1066MHz operation

Rated at PC3L-8500 with CL7 timings, the module maintains its specified throughput during extended workloads such as virtualisation hosting or database caching. Low-voltage 1.35V operation limits thermal output inside dense chassis. Error correction runs continuously without performance penalty under load. Modules that lack ECC or registered buffering cannot deliver equivalent data integrity for 24/7 server duty.

Highlights

  • High-capacity 32GB module handles heavy server workloads
  • Low-voltage DDR3L at 1.35V reduces power draw
  • ECC registered design protects data integrity
  • 240-pin DDR3 form factor fits compatible HP systems
  • Tested replacement for HP part numbers 627810-B21, 627814-S21, 628975-181, 632203-001, 632208-001

Specifications

BrandA-Tech
Capacity32GB
SpeedDDR3L 1066 (PC3L 8500)
CAS LatencyCL7
Voltage1.35V
ECCYes
Buffered/RegisteredRegistered
Rank4Rx4
ChipsetMajor Brand Chipset
FeaturesMajor Brand Chips

Questions about this item

Will the DDR3L 1.35V voltage limit stability under sustained server workloads?

The module operates at 1.35V DDR3L low voltage, reducing power draw and heat during continuous operation in compatible HP servers.

How much heat and noise does this 4Rx4 registered DIMM add when running all day?

Registered ECC modules run passively; the 1.35V DDR3L design lowers thermal output, so system fans stay at normal speeds.

Which HP part numbers must my server already support for this 240-pin DDR3L module to work?

This memory replaces HP 627810-B21, 627814-S21, 628975-181, 632203-001, 632208-001 — verify your system supports one of these.

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