Best 32GB Memory Modules for Business PCs and Workstations
One stick, 32 GB — registered and unbuffered ECC server modules, non-ECC desktop DIMMs and notebook SODIMMs across DDR3, DDR4 and DDR5, with live pricing per row.
32GB memory modules in stock at Uniqcli
How to choose →A curated selection with live pricing — in-stock lines first, then back-ordered lines with a typical lead time. Every line is sourced through authorized distribution and screened for TAA country-of-origin and NDAA §889 status before checkout.
- AddOnAddOn HP® 647654-181 Compatible Factory Original 32GB DDR3-1333MHz Load-Reduced ECC Quad Rank x4 1.35V 240-pin CL9 LRDIMM - 32 GB (1 x 32GB) - DDR3-1333/PC3-10600 DDR3 SDRAM - 1333 MHz Quad-rank Memory - CL9 - 1.35 V - ECC - 240-pin - LRDIMM - Lifetime Warranty647654-181-AM
$112.25
$103.27
5 in stock - AddOnAddOn HP® 647903-B21 Compatible Factory Original 32GB DDR3-1333MHz Load-Reduced ECC Quad Rank x4 1.35V 240-pin CL9 LRDIMM - 32 GB (1 x 32GB) - DDR3-1333/PC3-10664 DDR3 SDRAM - 1333 MHz Quad-rank Memory - CL9 - 1.35 V - ECC - 240-pin - LRDIMM - Lifetime Warranty647903-B21-AM
$112.25
$103.27
5 in stock - AddOnAddOn HP® 687466-001 Compatible Factory Original 32GB DDR3-1333MHz Load-Reduced ECC Quad Rank x4 1.35V 240-pin CL9 LRDIMM - 32 GB (1 x 32GB) - DDR3-1333/PC3-10664 DDR3 SDRAM - 1333 MHz Quad-rank Memory - CL9 - 1.35 V - ECC - 240-pin - LRDIMM - Lifetime Warranty687466-001-AM
$112.25
$103.27
5 in stock - AddOnAddOn Dell® A6994475 Compatible Factory Original 32GB DDR3-1333MHz Load-Reduced ECC Quad Rank x4 1.35V 240-pin CL9 LRDIMM - 32 GB (1 x 32GB) - DDR3-1333/PC3-10600 DDR3 SDRAM - 1333 MHz Quad-rank Memory - CL9 - 1.35 V - ECC - Registered - 240-pin - LRDIMM - Lifetime WarrantyA6994475-AM
$112.25
$103.27
5 in stock - AddOnAddOn Dell® SNPCC9FNC/32G Compatible Factory Original 32GB DDR3-1333MHz Load-Reduced ECC Quad Rank x4 1.35V 240-pin CL9 LRDIMM - 32 GB (1 x 32GB) - DDR3-1333/PC3-10664 DDR3 SDRAM - 1333 MHz Quad-rank Memory - CL9 - 1.35 V - ECC - 240-pin - LRDIMM - Lifetime WarrantySNPCC9FNC/32G-AM
$112.25
$103.27
5 in stock - AddOnAddOn Dell® SNPM39YFC/32G Compatible Factory Original 32GB DDR3-1333MHz Load-Reduced ECC Quad Rank x4 1.35V 240-pin CL9 LRDIMM - 32 GB (1 x 32GB) - DDR3-1333/PC3-10600 DDR3 SDRAM - 1333 MHz Quad-rank Memory - CL9 - 1.35 V - ECC - 240-pin - LRDIMM - Lifetime WarrantySNPM39YFC/32G-AM
$112.25
$103.27
5 in stock - AddOnAddOn HP® 627810-B21 Compatible Factory Original 32GB DDR3-1066MHz Registered ECC Quad Rank x4 1.35V 240-pin CL7 RDIMM - For Server - 32 GB (1 x 32GB) - DDR3-1066/PC3-8500 DDR3 SDRAM - 1066 MHz Quad-rank Memory - CL7 - 1.35 V - ECC - Registered - 240-pin - RDIMM - Lifetime Warranty627810-B21-AM
$299.25
$275.31
3 in stock - AddOnAddOn HP® 627814-S21 Compatible Factory Original 32GB DDR3-1066MHz Registered ECC Quad Rank x4 1.35V 240-pin CL7 Very Low Profile RDIMM - For Server - 32 GB (1 x 32GB) - DDR3-1066/PC3-8500 DDR3 SDRAM - 1066 MHz Quad-rank Memory - CL7 - 1.35 V - ECC - Registered - 240-pin - RDIMM - Lifetime Warranty627814-S21-AM
$299.25
$275.31
3 in stock - AddOnAddOn HP® 628975-181 Compatible Factory Original 32GB DDR3-1066MHz Registered ECC Quad Rank x4 1.35V 240-pin CL7 Very Low Profile RDIMM - For Server - 32 GB (1 x 32GB) - DDR3-1066/PC3-8500 DDR3 SDRAM - 1066 MHz Quad-rank Memory - CL7 - 1.35 V - ECC - Registered - 240-pin - RDIMM - Lifetime Warranty628975-181-AM
$299.25
$275.31
3 in stock - AddOnAddOn HP® 632203-001 Compatible Factory Original 32GB DDR3-1066MHz Registered ECC Quad Rank x4 1.35V 240-pin CL7 Very Low Profile RDIMM - For Server - 32 GB (1 x 32GB) - DDR3-1066/PC3-8500 DDR3 SDRAM - 1066 MHz Quad-rank Memory - CL7 - 1.35 V - ECC - Registered - 240-pin - RDIMM - Lifetime Warranty632203-001-AM
$299.25
$275.31
3 in stock - AddOnAddOn HP® 632205-001 Compatible Factory Original 32GB DDR3-1066MHz Registered ECC Quad Rank x4 1.35V 240-pin CL7 Very Low Profile RDIMM - For Server - 32 GB (1 x 32GB) - DDR3-1066/PC3-8500 DDR3 SDRAM - 1066 MHz Quad-rank Memory - CL7 - 1.35 V - ECC - Registered - 240-pin - RDIMM - Lifetime Warranty632205-001-AM
$299.25
$275.31
3 in stock - AddOnAddOn IBM® 90Y3101 Compatible Factory Original 32GB DDR3-1066MHz Registered ECC Quad Rank x4 1.35V 240-pin CL7 Very Low Profile RDIMM - For Server - 32 GB (1 x 32GB) - DDR3-1066/PC3-8500 DDR3 SDRAM - 1066 MHz Quad-rank Memory - CL7 - 1.35 V - ECC - Registered - 240-pin - RDIMM - Lifetime Warranty90Y3101-AM
$299.25
$275.31
3 in stock
DDR5 notebook module
Transcend Information
Transcend JetRAM 32GB DDR5 SDRAM Memory Module
JM5600ASE-32G
A JetRAM 32 GB DDR5-5600 SODIMM on 262 pins, dual-rank, unbuffered with on-die ECC, listed for notebooks and computers. The straightforward single-stick answer for a current-generation laptop or mini PC with one free slot.
On-die ECC is chip-level protection, not the reported end-to-end ECC a server platform provides.
$102.13Back-orderedRegistered DDR4-2400
Transcend Information
Transcend 32GB DDR4 SDRAM Memory Module
TS4GHR72V4C
32 GB of DDR4-2400 ECC registered memory on a 288-pin DIMM at CL17. A plain, specification-listed registered module for an older server or workstation generation that is being brought up to a full memory map rather than replaced.
$311.46Back-orderedCompatible DDR3 LRDIMM
AddOn
AddOn HP® 647903-B21 Compatible Factory Original 32GB DDR3-1333MHz…
647903-B21-AM
A factory-original compatible module built against an HP part number: 32 GB DDR3-1333 load-reduced ECC, quad rank, 1.35 V, 240-pin, with a lifetime warranty on the title. The route back to a full memory map on a machine whose original modules are long out of supply.
$103.27In stockCompatible DDR4 LRDIMM
AddOn
AddOn Lenovo® 4X70G78059 Compatible Factory Original 32GB DDR4-2133MHz…
4X70G78059-AM
The same compatible-memory idea a generation on — 32 GB DDR4-2133 load-reduced ECC, quad rank, 1.2 V on 288 pins, built against a Lenovo part number and carrying a lifetime warranty in its own title.
$515.20In stockTAA-designated DDR3
Axiom Memory Solutions
32GB DDR3-1600 Low Voltage ECC RDIMM
AXG51598657/1
A 32 GB DDR3-1600 low-voltage ECC registered module on 240 pins whose own catalog title states TAA Compliant. Where a purchase order carries an origin clause, that designation is a per-part fact to confirm on the number you are ordering.
Read the designation on the exact part number, never on the product family.
$351.49In stockWorkstation ECC UDIMM
Lenovo
Lenovo 32GB DDR4 SDRAM Memory Module
4X71L66408
32 GB of DDR4-3200 ECC unbuffered memory on a 288-pin DIMM, listed for desktop PCs and computers with a three-year warranty. The module type a great many workstations and entry servers actually take — error correction without the register.
$304.55Back-orderedDDR5 ECC registered
Lenovo
Lenovo 32GB DDR5 4800MHz ECC RDIMM Memory
4X71M22549
32 GB of DDR5-4800 ECC registered memory on 288 pins. The current-generation server and workstation module type, for a platform whose documentation names RDIMM rather than unbuffered memory.
$308.14Back-orderedDDR4-2666 RDIMM
Samsung
Samsung 32GB DDR4 SDRAM Memory Module
M393A4K40BB2-CTD
A 32 GB DDR4-2666 ECC registered 288-pin DIMM at CL19 from the chip maker's own module line. The common denominator part for a fleet of that generation, where one part number across every machine is worth more than a speed grade.
$499.95Back-orderedMobile workstation ECC
Samsung
Samsung RAM Module
M474A4G43AB1-CWE
32 GB of DDR4-3200 ECC unbuffered memory on a 260-pin SODIMM, dual-rank, listed for notebook and PC/server use. The specific and easily missed combination a mobile workstation needs: ECC in a notebook form factor.
$992.00Back-orderedDDR4-2666 server module
Micron Technology
Micron 32GB (1 x 32 GB) DDR4 SDRAM Memory Module
CT32G4RFD4266
32 GB of DDR4-2666 ECC registered memory on a 288-pin DIMM at CL19, from the chip manufacturer's own module range. A specification-listed part for building to a platform's memory list rather than to an OEM part number.
$377.73Back-orderedSingle-rank DDR4-3200
Micron Technology
Micron 32GB DDR4 SDRAM Memory Module
MTA18ASF4G72PZ-3G2R
32 GB of DDR4-3200 ECC registered memory, single-rank, on 288 pins with a three-year warranty and a listing for servers and workstations. Rank matters when a platform's supported speed falls as ranks per channel rise — read this one against the population rules.
$789.22Back-orderedServer RDIMM at 3200
Kingston Technology
Kingston 32GB DDR4 SDRAM Memory Module
KTD-PE432/32G
A 32 GB DDR4-3200 ECC registered 288-pin DIMM listed for server use at CL22, with a lifetime warranty on the title. Built against a server maker's platform, which is the lane to read when the machine is a specific OEM model rather than a generic board.
$600.95In stockECC SODIMM for servers
Kingston Technology
Kingston 32GB 2Rx8 4G x 72-Bit PC4-3200 CL22 260-Pin ECC SODIMM
KSM32SED8/32HD
32 GB of DDR4-3200 ECC memory on a 260-pin SODIMM, dual-rank at CL22 and listed for server use, with a lifetime warranty in its own title. The part for edge servers, network appliances and small-form-factor machines that take notebook-shaped ECC modules.
$769.25Back-orderedDDR4-2666 LRDIMM
Edge Memory
EDGE 32GB DDR4 SDRAM Memory Module
PE257484
A 32 GB DDR4-2666 load-reduced 288-pin module. Load-reduced parts exist so a server can carry more modules per channel than a registered part allows, which is what makes them the high-capacity population choice on the platforms that list them.
$449.11Back-orderedDDR5 server module
SK Hynix
SK Hynix RAM Module
HMCG88MEBRA
32 GB of DDR5-4800 ECC registered memory, dual-rank, on a 288-pin DIMM listed for server use. A chip-maker module for a current-generation server platform being populated to a documented channel map.
$3,527.27Back-orderedBrowse all 8,549 memory modules
Not the right one above? Filter the whole range by the specs that matter — live pricing and honest availability on every row, and the same TAA country-of-origin and NDAA §889 screening before checkout.
Showing 24 of 8,549 memory modules
- AddOnAddOn JEDEC Standard 8GB DDR4-2666MHz Unbuffered Single Rank x8 1.2V 288-pin CL17 UDIMM - For Computer - 8 GB (1 x 8GB) - DDR4-2666/PC4-21300 DDR4 SDRAM - 2666 MHz Single-rank Memory - CL17 - 1.20 V - Non-ECC - Unbuffered - 288-pin - DIMM - Lifetime WarrantyAA2666D4SR8N/8G
$192.00
$176.64
105 in stock - Dell TechnologiesDell Memory Upgrade - 8GB - 1Rx16 DDR4 UDIMM 3200 MT/s - For Gaming Desktop Computer, Desktop PC, Workstation - 8 GB - DDR4-3200/PC4-25600 DDR4 SDRAM - 3200 MHz Single-rank Memory - 1.20 V - Non-ECC - Unbuffered - 288-pin - DIMM - Lifetime WarrantySNP9CXF2C/8G
$249.99
$188.25
263 in stock - Kingston TechnologyKingston FURY Impact 32GB DDR4 SDRAM Memory Module - For Notebook, Motherboard, Mini PC - 32 GB (1 x 32GB) - DDR4-3200/PC4-25600 DDR4 SDRAM - 3200 MHz Dual-rank Memory - CL20 - 1.20 V - TAA Compliant - Non-ECC - Unbuffered - 260-pin - SODIMM - Lifetime WarrantyKF432S20IB/32
$530.00
$450.50
844 in stock - AddOnAddOn IBM® 00D5011 Compatible Factory Original 4GB DDR3-1600MHz Registered ECC Single Rank x4 1.35V 240-pin CL11 Very Low Profile RDIMM - For Server - 4 GB (1 x 4GB) - DDR3-1600/PC3-12800 DDR3 SDRAM - 1600 MHz Single-rank Memory - CL11 - 1.35 V - ECC - Registered - 240-pin - RDIMM - Lifetime Warranty00D5011-AM
$54.50
$50.14
534 in stock - AddOnAddOn HP® 809208-B21 Compatible Factory Original 128GB DDR4-2400MHz Load-Reduced ECC Octal Rank x4 1.2V 288-pin CL17 LRDIMM - 128 GB (1 x 128GB) - DDR4-2400/PC4-19200 DDR4 SDRAM - 2400 MHz Octal-rank Memory - CL17 - 1.20 V - ECC - 288-pin - LRDIMM - Lifetime Warranty809208-B21-AM
$2,805.00
$2,580.60
4 in stock
Specifications are read from the manufacturer product title as supplied to us; where a value is not stated it is left blank rather than estimated. Every line is screened for TAA country-of-origin and NDAA §889 status before checkout.
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Thirty-two gigabytes on one stick is the size at which memory buying stops being a shopping decision and becomes a compatibility one. The number on the box is the least specific thing about the part: the same capacity is sold as a registered server module, an unbuffered ECC module for a workstation, a plain non-ECC desktop DIMM and a notebook SODIMM, and those four are not substitutes for one another in any direction. A machine that wants registered memory will not post on unbuffered sticks, and a desktop board will not post on registered ones.
This page is fenced on single modules for a practical reason. A great deal of what is sold as "32GB" in this category is a kit of two 16 GB sticks, which is the right answer when a machine has slots to spare and the wrong one when it does not — a two-slot notebook already carrying a pair has nowhere to put a kit, and a server being populated to a channel map wants one module per slot at a known rank. Every row here is one 32 GB module, as the manufacturer's own title states it, so the count of slots you free and the count you fill is the count you expect.
After the module type, three facts on the title do the rest of the work: the generation and speed grade (this shelf spans DDR3, DDR4 and DDR5), whether the part carries ECC and whether that ECC is registered, buffered or on-die, and the pin count and form factor — 240-pin and 288-pin DIMMs alongside 260-pin and 262-pin SODIMMs. Read them against the machine's own memory list rather than against the price. The selection below spans the manufacturers Uniqcli carries, from module makers to compatible-memory specialists, with live pricing printed on each card; where a fleet upgrade needs a quantity or a part that is not shown, send the machine model and we will quote the matched module with lead times attached.
Buyer's checklist
How to choose a 32GB memory module
- Start from the machine, not the module: the server, workstation or notebook's own documentation names the generation, the maximum module size, the module type and the population rules, and every one of those can rule a part out on its own.
- Match the module type exactly — registered (RDIMM), load-reduced (LRDIMM), unbuffered ECC or plain non-ECC. These titles state which, and a platform that requires one will not post on another; this is the single most common failed upgrade in this category.
- Check the form factor and pin count against the slot: 240-pin and 288-pin DIMMs for desktops, workstations and servers, 260-pin and 262-pin SODIMMs for notebooks and small-form-factor machines. There is no adapter for this.
- Read the speed grade as a ceiling, not a promise. A module rated above the platform's supported speed runs at the platform's speed, and mixing grades across a set generally settles at the slowest part — buy the grade the machine supports rather than the fastest one listed.
- Watch rank and channel population on servers and workstations. Single-rank, dual-rank and quad-rank parts are all present on this shelf, and a platform's supported speed frequently drops as ranks per channel rise, which is a documented behaviour rather than a defect.
- Decide one module or a kit before you order: a kit of two 16 GB sticks fills two slots for the same capacity, which is either exactly what you want for dual-channel population or exactly what you cannot afford in a two-slot notebook.
- Where the purchase order names TAA, read it on the part number — it appears in the product data of specific modules here and is a per-part fact, never a family or brand rule.
- Standardize on one part number per machine model across a fleet so spares, the upgrade procedure and the eventual second wave are one decision instead of many.
Four module types, and why the wrong one simply will not work
Registered memory puts a register between the controller and the DRAM chips so a server can address far more modules per channel than a desktop board can; load-reduced memory extends the same idea with a buffer that further reduces the electrical load, which is why the quad-rank high-capacity parts here are titled LRDIMM. Unbuffered ECC sits in the middle: the error correction is present, the register is not, and it is what a great many workstations and entry servers actually take. Plain non-ECC unbuffered memory is what a desktop or notebook uses, and DDR5 adds a wrinkle worth knowing — on-die ECC is a chip-level protection against internal errors and is not the same thing as the end-to-end ECC a server platform reports to the operating system. The titles on this page distinguish all of these, and the distinction is not a preference: it is whether the machine posts.
Capacity per slot is the other half. A platform's maximum memory is a product of module size, slots and the population rules for the ranks involved, and 32 GB is often the largest module an older workstation will accept even though it has four slots. That is exactly why the single-module fence on this page matters — it is the part that lets you count what you are adding. Where a machine is already full, the upgrade is a swap rather than an addition, and the removed modules are worth planning for: matched sticks pulled from a fleet refresh are frequently the cheapest spares that estate will ever have.
Module makers, compatible memory and what each is for
Two kinds of supplier are represented on this shelf and they answer different questions. Module manufacturers list parts by specification — generation, speed, rank, ECC type, pin count — which is what you want when you are building to a platform's memory list or standardizing a workstation image. Compatible-memory specialists list parts against the OEM part number they replace, which is what you want when a machine is out of its original supply window and the exact original module is no longer orderable at a sensible price; those titles name the OEM number they are built against, and several carry a lifetime warranty in the title.
Neither is automatically the right answer, and price alone is a poor way to choose between them. For a server under an active support contract, check what the support terms say about third-party memory before the order goes in — it is a two-minute question that occasionally changes the answer. For an out-of-warranty machine, a compatible module against the OEM number is often the only sensible route back to a full memory map. Send the machine model and the current configuration and we will come back with the modules that match it, in either lane, with the availability and lead time attached rather than assumed.
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FAQ
Common questions
- Is a 32GB module the same as a 32GB kit?
- No, and the difference decides whether the upgrade fits. A 32 GB module is one stick that occupies one slot; a 32 GB kit is usually two 16 GB sticks that occupy two. Every row on this page is a single module, as stated in the manufacturer's own title, because that is what a buyer counting free slots needs. A kit is the better answer when a machine has empty slots and benefits from populating two channels at once; the single module is the answer when slots are scarce, when a server is being populated to a channel map, or when a two-slot notebook already has both slots filled and the upgrade has to be a straight swap.
- What is the difference between RDIMM, LRDIMM and UDIMM?
- They are three ways of driving the DRAM chips, and a platform accepts one of them. A registered module (RDIMM) buffers the command and address signals, which lets a server carry more modules per channel. A load-reduced module (LRDIMM) buffers more of the electrical load again and is how the highest-capacity, highest-rank parts are built — most of the quad-rank modules on this page are titled LRDIMM. An unbuffered module (UDIMM) has neither, and is what desktops, notebooks and many workstations and entry servers take, with or without ECC. The machine's documentation names which it supports; fitting the wrong type does not degrade performance, it prevents the machine from starting.
- Can I mix a new 32GB module with the memory already installed?
- Sometimes, and it is worth checking rather than assuming. The module type, generation and voltage must match, the platform's population rules have to allow the resulting arrangement, and the set will generally run at the slowest speed grade present — so a fast new module beside older sticks buys capacity rather than speed. On servers and workstations, mixing ranks across a channel can also lower the supported speed. Where the machine is doing production work, populating a whole channel or a whole machine with one part number is the arrangement that behaves predictably, which is why fleet upgrades are usually specified as full sets.
- Does a higher-speed module make the machine faster?
- Only up to what the platform supports. A module rated above the processor and board's supported speed runs at the supported speed, so paying for a higher grade buys nothing on that machine — and on server platforms the effective speed can drop further as ranks per channel increase, which is documented behaviour rather than a fault. Buy the grade the machine's own documentation names, put the money into capacity or into matching a whole channel, and keep the part number consistent across the fleet so the behaviour is the same on every desk.
- Can business, government and education buyers order these?
- Every line Uniqcli quotes is sourced through US distribution and screened for TAA country-of-origin and NDAA §889 status before checkout — with documentation tied to the specific part number, not a product family.
Need 32GB memory modules pricing?
Send a bill of materials or part numbers — we confirm stock, TAA country of origin and a below-market total. No payment up front.