DDR5 High Capacity

DDR5 High capacity
8 GB to 256 GB

Name: DDR5 High Capacity 8–256 GB
Brand: Flowfinds
Price: 159.00 EUR

€159 €19.88 per GB · Incl. VAT, shipping included

Delivered in 2–3 days

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Not sure your board holds this configuration?

Tell us your CPU and motherboard — we check it and tell you the configuration we guarantee before you pay. If it doesn’t run at that configuration once installed, we replace or refund it.

Check your configuration

High capacity is where
the memory controller starts to argue.

Four populated DIMM slots load the controller far harder than two, and AMD and Intel both publish lower validated speeds for four-DIMM configurations. At 192 and 256 GB we will not print one speed for every machine. Tell us the machine and we will name the configuration we are willing to guarantee on it, before you pay.

One kit, named

Out comes a single recommended kit — plus a lower-cost and an upgrade option — with the reason for each. Not a filtered catalogue for you to guess from.

A certainty level, stated

Every answer carries a level from 1 to 5 saying how sure we are, and what that certainty rests on. Where we have not validated your exact board we say so rather than implying we have.

Replace or refund if it misses

If Flowfinds approves your submitted system and the RAM does not operate at the guaranteed configuration, Flowfinds pays the return cost and provides a replacement or refund.

Before it ships

Every kit is bench-tested.
The ones that fail never reach stock.

Four stages, in this order. A kit that fails any of them is quarantined and never re-enters sellable inventory — what arrives is a kit that passed, not one that was merely boxed.

1 — Inspection

Contact edge clean and unmarked, PCB straight, heat spreader seated, both modules of a pair from matching stock, and the module matches what the order says it is.

2 — Live bench boot

Installed in a real desktop platform of the correct generation — not read out with a sticker scanner. It must POST, report the full advertised capacity and hold a stable speed.

3 — Full memory-test pass

An industry-standard memory test across the entire address space, the class of tool used for this everywhere, such as MemTest86. A single error is a fail; there is no "minor error" category in memory testing.

4 — Verdict

Pass: packed and matched to the order it will fulfil. Fail: quarantined, and it never re-enters sellable stock.

A bench pass proves the silicon works. It cannot reproduce every board, BIOS version and profile combination in the field — no test process anywhere can, and we would rather say that than pretend otherwise. The full process · the validation matrix, which is empty on purpose until real per-platform results fill it.

The comparison

Same silicon class.
Different amount of proof.

Mainstream premium RAM

Good performance and a trusted logo. Batch-sampled rather than unit-tested. The rated profile is printed on the box; whether your board reaches it is your problem to discover after it arrives. Priced for the brand.

Flowfinds

Every kit bench-booted and memory-tested before dispatch. Exact bin, timings, voltage, rank and module count published per capacity. A guaranteed configuration for your board before you pay, backed by replace-or-refund. Two-year warranty, 14-day refund guarantee, tracked EU, UK and US shipping in the price.

Where we hold a loaded, dated, in-stock competitor listing for a capacity, the saving against it is shown on the buy panel with the seller and the date attached. Where we do not hold one, no comparison is shown — an unbacked "you save X" is exactly the claim this site refuses to make.

Specifications

DDR5-5600 — 8 GB

Module configuration
Memory type	DDR5, 288-pin non-ECC unbuffered UDIMM (desktop)
Kit	96 GB as 2 × 48 GB modules, factory-matched, individually serialised
Speed	DDR5-6000 rated profile (XMP 3.0 / AMD EXPO). DDR5-5600 from the JEDEC SPD when no profile is enabled.
CAS latency / timings	30-36-36-96 at DDR5-6000 under the rated profile, CL30 at 6000 MT/s is 10.0 ns.
Operating voltage	1.35 V under the rated DDR5-6000 profile · 1.10 V at the DDR5-5600 JEDEC SPD default.
Profile	XMP 3.0 and AMD EXPO, both on the same module.
Rank / organisation	Two modules, one per channel, leaving the second slot of each channel empty.
On-die ECC	Yes, mandatory in DDR5. The DRAM corrects single-bit errors inside its own array. It does not check the link to the CPU, does not report to the operating system, and is not a substitute for registered ECC.
Not interchangeable with	RDIMM / registered / server ECC memory · laptop SO-DIMM (see the SODIMM line) · DDR4 of any kind (see the DDR4 lines)

More specifications

Platform support & assurance
Fits	AM5 · LGA1851 · LGA1700 DDR5 desktop boards, two DIMM slots populated, check yours
Does not fit	AM4, LGA1200, LGA1151 or any DDR4 board · laptops (SODIMM) · RDIMM/ECC server boards
Condition	New. Seated, POSTed at the SPD default and pattern-tested before dispatch (the process)
Replenishment	Supplier lead time for a production reorder is 5 business days.
Warranty	Limited lifetime warranty from the date of purchase, handled by Flowfinds Solutions Kft. 30-day DOA advance replacement; validated defects replaced at supplier cost, dispatched within 2 business days of validation. Statutory EU and UK consumer rights apply on top and are not limited by the warranty. Full terms.

Guaranteed baseline: DDR5-5600 at 1.10 V from the JEDEC SPD, with no profile enabled. The rated DDR5-6000 profile has to be enabled in firmware.

Every figure above is a supplier-confirmed specification for the selected kit. Where a supplier publishes a class rather than a single figure we give the JEDEC baseline or the class range, and we read the exact number off your kit on request before you pay.

€159 Incl. VAT, shipping included

Check compatibility

How it arrives

Packed, tracked,
at your door.

Anti‑static packaging inside a rigid outer box, tracked from the moment it leaves us.

Reviews

What buyers report.

Where it is built

Paste, placement, reflow, then test. The clips and stills below show the surface-mount process a module goes through before it is packed.

Placement and reflow, then the trays that go to test.

A finished module lifted into an anti-static tray.

Inside a surface-mount machine: the placement head above a board, with the reflow oven opening behind it — The placement head over a board, reflow oven beyond it.

Finished units in trays moving along a conveyor on a surface-mount line, with operators at benches alongside — Finished units moving down the line towards test.

Pick by machine

What machine will you use it in?

Type of machine

Engineering notes

What changes as
you go up the ladder.

Two DIMMs behave differently from four

Up to 128 GB the kit is two modules, one per channel, with the second slot of each channel empty. The loading a desktop controller trains most reliably, which is why those capacities state their rated bin outright. At 192 and 256 GB all four slots are populated and the achievable speed becomes a property of your board and firmware, not of the modules.

Rated profile versus JEDEC SPD

32 and 64 GB are JEDEC bins: DDR5-5600 CL46 straight from the SPD, nothing to enable. From 96 GB up, DDR5-6000 is a programmed XMP 3.0 or EXPO profile and the SPD default underneath it is DDR5-5600 at 1.10 V. A board with no profile support still boots, just slower.

Latency is CL × 2000 ÷ MT/s

CL30 at 6000 is 10.0 ns; CL34 at 6000 is 11.3 ns; CL46 at 5600 is 16.4 ns. High-capacity bins are validated for stability across a loaded channel rather than for latency records, and a CL number quoted without its bin means nothing.

On-die ECC is not server ECC

Mandatory DDR5 in-array correction on every module here. It does not check the link to the CPU, does not report to the operating system, and is not registered ECC. If you need real ECC reporting, this is a consumer UDIMM and it is the wrong part.

Not interchangeable with RDIMM

Everything on this page is 288-pin non-ECC unbuffered desktop UDIMM. It does not fit a server board that takes RDIMMs, and an RDIMM does not fit a desktop board, different keying, different signalling, different platform.

On-module PMIC

Every DDR5 DIMM regulates its own voltage from the board's 12 V rail, 1.1 V at JEDEC, 1.35 V or 1.40 V under a rated profile. That is why DDR5 modules are not passive components the way DDR4 modules were.

Why now

High capacity got harder
to buy, and dearer.

DRAM production has been shifting toward AI and data-centre demand, and high-capacity desktop modules are the part of the market that feels it first. They are scarcer and they cost more than they used to. We buy direct from the factories that assemble the modules instead of through a distribution chain, which is where a good part of that markup normally gets added. How to check any of this.

Before you order.

Compatibility checkerBoard and CPU in, the configuration we guarantee out. Required for the 192 and 256 GB kits. Validation matrixEvery platform we have bench-tested and the setting we guarantee on it. Empty until real testing fills it. How we testSeat, POST, train, pattern-test, read back. And what happens to the modules that fail. Trade & system buildersFlat per-kit pricing, replacement stock on large purchase orders, and the real lead times.

DDR5 High capacity8 GB to 256 GB

High capacity is wherethe memory controller starts to argue.