SK Hynix · Server Memory

SK Hynix server memory — DDR4 ECC RDIMM and LRDIMM

Server memory is the most frequently mis-ordered line in the catalogue, because a module that is physically identical and electrically incompatible looks the same on a purchase order. Registered and load-reduced modules of the same capacity and speed will not run together; a rank configuration the board does not support will not post; and a module qualified for one manufacturer's platform may be rejected by another's firmware. Every module here is listed with the full attribute set that decides compatibility, plus the manufacturer part number and, where applicable, the server maker's own option part number.

How to read these part numbers

Each line reads: manufacturer, capacity, speed, ECC type, module type, JEDEC speed grade, rank configuration, then the option part number and the module part number. `RAM HP 32GB DDR4-2400 ECC RDIMM PC4-19200T-R 2Rx4 809083-091 HMA84GR7AFR4N-UH` is a 32GB registered DIMM at DDR4-2400, dual rank by four, carrying HP option number 809083-091 and SK Hynix module number HMA84GR7AFR4N-UH. `R` in the JEDEC code marks registered, `L` marks load-reduced.

Equipment reference

15 of 15 items

HMA42GR7AFR4N-UH

Model
RAM SK Hynix 16GB DDR4-2400 ECC RDIMM PC4-19200T-R 2Rx4 HMA42GR7AFR4N-UH
Compatibility
On enquiry
Band / Interface
On enquiry
Condition
On enquiry
Lead Time
On enquiry

HMA42GR7MFR4N-TF

Model
RAM SK Hynix 16GB DDR4-2133 ECC RDIMM PC4-17000P-R 2Rx4 HMA42GR7MFR4N-TF
Compatibility
On enquiry
Band / Interface
On enquiry
Condition
On enquiry
Lead Time
On enquiry

HMA82GR7AFR8N-UH

Model
RAM SK Hynix 16GB DDR4-2400 ECC RDIMM PC4-19200T-R 2Rx8 HMA82GR7AFR8N-UH
Compatibility
On enquiry
Band / Interface
On enquiry
Condition
On enquiry
Lead Time
On enquiry

HMA82GR7AFR8N-VK

Model
RAM SK Hynix 16GB DDR4-2666 ECC RDIMM PC4-21300V-R 2Rx8 HMA82GR7AFR8N-VK
Compatibility
On enquiry
Band / Interface
On enquiry
Condition
On enquiry
Lead Time
On enquiry

HMA82GR7CJR8N

Model
RAM SK Hynix 16GB DDR4-2666 ECC RDIMM PC4-25666V-R 2Rx8 HMA82GR7CJR8N
Compatibility
On enquiry
Band / Interface
On enquiry
Condition
On enquiry
Lead Time
On enquiry

HMA84GL7AMR4N-TF

Model
RAM SK Hynix 32GB DDR4-2133 ECC LRDIMM PC4-17000P-L 4Rx4 HMA84GL7AMR4N-TF
Compatibility
On enquiry
Band / Interface
On enquiry
Condition
On enquiry
Lead Time
On enquiry

HMA84GL7AMR4N-UH

Model
RAM SK Hynix 32GB DDR4-2400 ECC LRDIMM PC4-19200T-L 4DRx4 HMA84GL7AMR4N-UH
Compatibility
On enquiry
Band / Interface
On enquiry
Condition
On enquiry
Lead Time
On enquiry

HMA84GL7MMR4N-TF

Model
RAM SK Hynix 32GB DDR4-2133 ECC LRDIMM PC4-17000P-L 2DRx4 HMA84GL7MMR4N-TF
Compatibility
On enquiry
Band / Interface
On enquiry
Condition
On enquiry
Lead Time
On enquiry

HMA84GR7AFR4N-TF

Model
RAM SK Hynix 32GB DDR4-2133 ECC RDIMM PC4-17000P-R 2Rx4 HMA84GR7AFR4N-TF
Compatibility
On enquiry
Band / Interface
On enquiry
Condition
On enquiry
Lead Time
On enquiry

HMA84GR7AFR4N-UH

Model
RAM SK Hynix 32GB DDR4-2400 ECC RDIMM PC4-19200T-R 2Rx4 HMA84GR7AFR4N-UH
Compatibility
On enquiry
Band / Interface
On enquiry
Condition
On enquiry
Lead Time
On enquiry

HMA84GR7AFR4N-VK

Model
RAM SK Hynix 32GB DDR4-2666 ECC RDIMM PC4-21300V-R 2Rx4 HMA84GR7AFR4N-VK
Compatibility
On enquiry
Band / Interface
On enquiry
Condition
On enquiry
Lead Time
On enquiry

HMAA8GL7AMR4N-VK

Model
RAM SK Hynix 64GB DDR4-2666 ECC LRDIMM PC4-21300V-L 4Rx4 HMAA8GL7AMR4N-VK
Compatibility
On enquiry
Band / Interface
On enquiry
Condition
On enquiry
Lead Time
On enquiry

HMAA8GL7CPR4N-WM

Model
RAM SK Hynix 64GB DDR4-2933 ECC LRDIMM PC4-23466U-L 4Rx4 HMAA8GL7CPR4N-WM
Compatibility
On enquiry
Band / Interface
On enquiry
Condition
On enquiry
Lead Time
On enquiry

HMAA8GR7AJR4N-WM

Model
RAM SK Hynix 64GB DDR4-2933 ECC RDIMM PC4-23466U-R 2Rx4 HMAA8GR7AJR4N-WM
Compatibility
On enquiry
Band / Interface
On enquiry
Condition
On enquiry
Lead Time
On enquiry

HMAG84EXNRA086N

Model
RAM SK Hynix 32GB DDR4-3200 ECC RDIMM PC4-25600 2Rx4 HMAG84EXNRA086N
Compatibility
On enquiry
Band / Interface
On enquiry
Condition
On enquiry
Lead Time
On enquiry

Cannot find a part number? Send us the number and we will identify and price it.

Ordering notes

Match five attributes: capacity, speed grade, module type (RDIMM or LRDIMM — these cannot be mixed in a system), rank configuration, and the platform option number where the server maker enforces one. Populate in matched sets across channels; an unbalanced population runs but loses bandwidth. Note that a faster module will clock down to the slowest module or the processor's supported speed, so mixing speeds wastes money rather than causing failure.

Lifecycle and availability

DDR4 in all speed grades listed remains widely available new and refurbished. Modules carrying a server maker's option part number were qualified for that platform and are the safer choice where firmware enforces a whitelist. Condition is stated per line.

Equipment condition

New — factory-sealed, supplied through the manufacturer's own channel or a qualified distributor, with full manufacturer warranty.

New surplus — unused factory stock, original packaging where available, sourced from decommissioned projects or distributor inventory. Manufacturer warranty may have lapsed; CRS PLUS warranty applies.

Refurbished / tested — previously deployed equipment, cleaned, firmware-checked and functionally tested against the manufacturer's specification before shipment. CRS PLUS warranty applies.

Condition is confirmed in writing on every quotation before you commit to an order.

Warranty

Warranty terms vary by item, by condition and by the supplier the equipment is sourced from. They are stated in writing on the quotation, per line item, before you commit to an order.

Where equipment is supplied new through the manufacturer's own channel, the manufacturer's warranty applies and is passed to you.

Send us the part numbers you need and we will confirm warranty terms alongside availability, condition, lead time and price.

Frequently asked questions

Listing here does not indicate stock held by CRS PLUS. Every line is sourced through our qualified supplier base, and availability, condition and lead time are confirmed against your enquiry before you commit. Condition is stated explicitly on every quotation.

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Server Memory All equipment categories

Manufacturer names, product names and part numbers are the property of their respective owners and are used here for identification purposes only. CRS PLUS sources these products through its qualified supplier base and holds no distributor, reseller or agency appointment from any manufacturer listed.

This catalogue is compiled from our supplier network's available inventory and from manufacturer product documentation, and is reviewed monthly. Listing does not indicate stock held by CRS PLUS — availability, condition and lead time are confirmed per enquiry. Last reviewed: 22 August 2026.

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