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Green rectangular DDR4 memory module with gold contacts and black chips

Brute Networks

Brute Networks 726720-S21-BN 16GB DDR4 2133 RDIMM 2Rx4

SKU CH-5XEP-YTVMG

HP-compatible 16 GB DDR4-2133 RDIMM with ECC, CL15 latency and registered 2Rx4 organisation for server upgrades

  • Total capacity16 GB
  • Rated speedDDR4 2133 (PC4 17000)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL15
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • 16 GB DDR4 capacity expands server memory
  • 2133 MHz CL15 speed supports demanding workloads
  • Registered 2Rx4 ECC design protects data integrity
  • 2 V operation reduces power consumption
  • HP 726720-S21 compatible for guaranteed fit

HP-compatible server RDIMM

This is a 16 GB DDR4-2133 registered DIMM built to HP part number 726720-S21. It targets IT teams maintaining or expanding existing HP ProLiant or Apollo servers that require ECC registered memory.

Verify registered DDR4 slots and population rules

Before ordering, confirm the server accepts 288-pin registered DDR4 modules and that the memory-configuration guide permits 2Rx4 ranks in the target bank. Mixing registered with unbuffered DIMMs will prevent boot, so all slots in a channel must match.

Standard 1.2 V operation keeps thermals low

At the rated 1.20 V the modules run within JEDEC thermal limits without extra airflow. Registered buffering adds negligible latency and the CL15 timing delivers stable throughput for typical virtualization and database workloads.

How it compares

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

Price $96.99
Cheaper 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 $6.06 per GB
Cheaper than about 63% of the 6,064 comparable items (median $7.25 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameHP
Total capacity16 GB
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR4 2133 (PC4 17000)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL15
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Power
Rated voltage1.2 V

Questions about this item

Does the 726720-S21-BN module ship alone or with any extra components?

The module is a single 288-pin DDR4 RDIMM. No brackets, cables or additional parts are included.

How do I decide between this 16 GB 2Rx4 stick and other capacities?

Choose this 2Rx4 16 GB module when your server needs registered ECC memory at 2133 MT/s and the board supports dual-rank population.

What does the 2133 MT/s rating mean once the DIMM is installed?

The memory will run at up to 2133 MT/s with CL15 latency at 1.2 V, provided the platform supports that speed.

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