We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Green rectangular circuit board with black memory chips and gold edge connectors

Axiom

Axiom 805669-B21-AX 8GB DDR4-2133 ECC UDIMM server RAM

SKU CH-Z66Z-SYM0C MPN 805669-B21-AX

8 GB DDR4 ECC UDIMM at 2133 MHz with CL15 latency and 1.20 V operation

  • ECC protection prevents data corruption in servers
  • 2133 MHz DDR4 speed handles demanding workloads
  • 20 V operation cuts power use by 20 %
  • 8 GB capacity keeps more applications running
  • 288-pin UDIMM fits compatible HP server slots

Axiom 8GB DDR4-2133 ECC UDIMM

This 8 GB DDR4-2133 ECC UDIMM is built for HP servers that require error-correcting unbuffered memory. It operates at 2133 MHz with CL15 latency and a 1.20 V supply, delivering 8 GB of registered capacity for data-intensive workloads. The 288-pin module follows the PC4-17000 standard for enterprise reliability.

Check DDR4 UDIMM slot availability

Before ordering, confirm your server has a free DDR4 UDIMM slot that accepts unbuffered ECC modules at 1.20 V. Verify the platform supports 2133 MHz operation and CL15 timing without requiring registered or load-reduced DIMMs. Ensure the memory controller can address an 8 GB density per slot.

Guaranteed compatibility and lifetime warranty

The bundled assurance provides guaranteed compatibility with the target HP part number 805669-B21 and a lifetime warranty from the OEM Alternative program. This replaces the need for separate validation testing and covers the module for the duration of its service life in the qualified system.

How it compares

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

Price $102.99
Cheaper than about 68% of the 6,523 comparable items (median $188.99).

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

Specifications

Size & build
Shipping weight0.01 kg
Package size133 × 31 × 4 mm

Questions about this item

Does the 805669-B21-AX module come as a single 8 GB stick or do I need to buy anything else to install it?

The module is a single 8 GB DDR4 UDIMM. No extra parts are required; it plugs directly into a compatible 288-pin DDR4 server slot.

Should I choose this 2133 MHz CL15 version or a faster DDR4 module for my server?

Select this 2133 MHz CL15 module when your platform specifies DDR4-2133/PC4-17000. Faster modules will down-clock to this speed, so matching the rated frequency avoids unnecessary cost.

What does the 2133 MHz rating mean for actual server workloads?

The 2133 MHz data rate delivers up to 100 % higher throughput than DDR3 at 1.20 V, reducing power draw by roughly 20 % while supporting ECC error correction for data integrity.

More in ECC Server RAM

Similar items