RAM / Memory
Server-grade ECC memory — DDR3, DDR4, and DDR5 RDIMMs and LRDIMMs, speed- and rank-matched to your platform. Filter by capacity, speed, and brand, or send us your server model and we'll match the right modules for you.
Server RAM & Memory — DDR3, DDR4, DDR5 ECC
Upgrade or repair with server-grade memory that has been tested in same-generation hardware before it ships. PC Server & Parts stocks ECC RDIMMs and LRDIMMs across DDR3, DDR4, and DDR5 for Dell PowerEdge, HPE ProLiant, and Lenovo servers, plus workstation memory for Dell Precision, HP Z, and ThinkStation systems. Filter the listing by capacity, speed, and brand — or tell us your server model and we will match the right modules for you.
We also stock unbuffered ECC and non-ECC modules for workstations and desktops. Buying in volume? Send us the platform and quantity and we will quote a matched kit from stock — and if you are clearing excess ECC memory, we buy it back.
RAM Price Guide — What Used and Refurbished Memory Costs
A single refurbished DDR4 memory module costs roughly $15 to $691 depending on capacity: about $15 for a 4GB stick, $35–$82 for 8GB, $50–$165 for 16GB, $110–$359 for 32GB, and $265–$691 for 64GB. That is roughly 40–70% below the price of equivalent new memory, and every figure below is taken from modules actually in stock at PC Server & Parts as of August 2026 — not a market estimate.
| Capacity (per stick) | Server ECC (RDIMM / LRDIMM) | Desktop & workstation (UDIMM) |
|---|---|---|
| 4GB DDR4 | $14.99 – $16.98 | — |
| 8GB DDR4 | $34.99 – $82.49 | $52.79 – $79.74 |
| 16GB DDR4 | $49.99 – $164.99 | $131.99 – $160.59 |
| 32GB DDR4 | $109.99 – $359.09 | $293.69 |
| 64GB DDR4 | $265.09 – $691.19 | — |
| 8GB / 32GB DDR3 | from $19.99 / from $49.99 | — |
Within a capacity, price moves with speed (MT/s), rank, and DIMM type: a 2133 MT/s RDIMM sits at the bottom of the range and a 3200 MT/s module at the top. LRDIMMs and high-density 64GB parts carry a premium because they exist to fill fully populated dual-socket boards.
Bulk RAM Prices — 128GB to 1TB Kits
Large totals are bought as matched lots of identical modules — for one heavily populated board, or spread across several servers in a fleet refresh — and that is where the per-gigabyte cost drops. In-stock DDR4 lots start at these prices:
| Total capacity | Modules in the lot | In stock from |
|---|---|---|
| 64GB | 8 × 8GB RDIMM | $351.91 |
| 128GB | 16 × 8GB RDIMM | $703.82 |
| 256GB | 32 × 8GB or 16 × 16GB RDIMM | $1,407.65 |
| 384GB | 24 × 16GB RDIMM | $2,243.74 |
| 512GB | 32 × 16GB RDIMM | $2,991.65 |
| 1TB | 64 × 16GB RDIMM | $5,983.30 |
A lot larger than one board’s slot count is supplied across several machines — tell us how many servers it has to cover. Need more than a terabyte, or a capacity that is not listed? Send the server model and target total and we will quote the kit from current and incoming stock.
Stock notes, August 2026: DDR4 is the deepest part of our catalog and the best value on the used market. DDR3 prices are lower per stick but our DDR3 shelf is thin — a handful of modules from $19.99. DDR5 RDIMMs are sold out at the moment, so DDR5 is quoted on request rather than published here — send us your server model and target capacity and we will price it from incoming stock. The numbers above are pulled from live listings and move with the memory market — treat them as the current refurbished ballpark and check the products below for today’s exact price.
Shop Memory by Generation
- DDR4 server memory prices — 8GB, 16GB, 32GB and 64GB ECC RDIMMs and LRDIMMs for Dell 13th/14th/15th-gen PowerEdge, HPE Gen9/Gen10 and Lenovo ThinkSystem, from $34.99 a stick. The best price per gigabyte on the used market right now.
- DDR3 server memory prices — 8GB, 16GB and 32GB ECC RDIMMs for Dell 11th/12th-gen PowerEdge and HPE G7/Gen8, the cheapest way to keep legacy hardware running.
- DDR5 server memory — ECC RDIMMs for 4th/5th Gen Xeon Scalable, Xeon 6 and AMD EPYC 9004/9005, currently out of stock and priced on request.
Matching Memory to Your Platform
- Type: registered (RDIMM) and load-reduced (LRDIMM) modules for servers; unbuffered ECC and non-ECC for workstations and desktops.
- Speed: memory runs at the speed your CPU generation supports — e.g., 2400 MT/s for Xeon E5 v4, 2933 MT/s for Cascade Lake, 4800+ MT/s for DDR5 platforms. Faster modules downclock; mismatched ranks can refuse to boot.
- Population rules: capacity, rank, and slot order all matter on dual-socket boards. Buying all modules from one source keeps the kit uniform.
Not sure what fits? Send us the server or motherboard model and we will confirm compatibility before you order.
Why Buy Server Memory from PCSP
- Load-tested: every module is exercised in a same-generation server (memtest86+ or vendor diagnostics) — ECC function, full capacity, and rated speed verified.
- Platform-matched: we confirm fit against your exact machine, not just the spec sheet.
- 90-day returns: DOA or non-conforming parts come back on us.
- Fast shipping: in-stock modules ship the same business day when ordered before 1:00 pm EST.
DDR4 is where a hardware budget goes furthest in today’s memory market — see our take on the 2026 RAM price crunch: Refurbished DDR4 Server Memory: The 2026 RAM Price Fix. Building out a whole system? Start from a refurbished server or workstation and we configure the memory with it.
Quick Answers: RAM Prices & Buying
How much does RAM cost?
On the refurbished market a single DDR4 module costs about $15 for 4GB, $35–$82 for 8GB, $50–$165 for 16GB, $110–$359 for 32GB, and $265–$691 for 64GB — roughly 40–70% below equivalent new memory. Within each capacity the price is driven by speed, rank, and DIMM type: slower 2133 MT/s modules sit at the bottom of the range, 3200 MT/s and load-reduced parts at the top. These are live PCSP prices as of August 2026 and they move with the DRAM market, so check the listings for today’s figure.
How much is a single stick of RAM?
A single used 8GB DDR4 stick starts at about $35, and a 16GB stick at about $50. At the same capacity, desktop and workstation UDIMMs run higher than server RDIMMs pulled in volume — roughly $53–$80 for 8GB and $132–$161 for 16GB — because far fewer of them come out of decommissioned fleets.
How much does 512GB or 1TB of RAM cost?
A 512GB refurbished DDR4 kit (32 × 16GB ECC RDIMM) starts at about $2,992, and 1TB (64 × 16GB) at about $5,983. Mid-range totals price proportionally: 128GB from roughly $704, 256GB from $1,408, 384GB from $2,244. Large kits are sold as matched lots of identical modules so the memory trains cleanly across every channel; totals past a single board’s slot count are supplied as multi-server lots.
Is it safe to buy used RAM?
Yes. Memory has no moving parts and rarely wears out — ECC server modules are engineered for years of continuous duty, and failures cluster at the very start of a part’s life rather than at the end. Every stick sold here passes a full test cycle in real same-generation hardware before listing, so what arrives is verified working, and a 90-day return policy covers anything non-conforming.
Is DDR3, DDR4 or DDR5 cheaper?
DDR3 is the cheapest per stick, DDR4 is the cheapest per gigabyte in practice, and DDR5 carries a clear new-platform premium. Refurbished DDR3 modules start around $20 but only fit servers from the Xeon 5500/5600 and E5 v1/v2 era; DDR4 covers the far larger installed base of Xeon E5 v3/v4 and Xeon Scalable machines and has the deepest supply, which is why it is the value buy in 2026. DDR5 supply is still tight, so it is priced on request.
Where is the best place to buy RAM for a PC or server?
For server and workstation memory, buy from a seller that load-tests each module in same-generation hardware and matches it to your platform — the wrong rank or DIMM type is the most common cause of a machine that will not boot. PC Server & Parts tests every module, confirms compatibility against your exact server model before shipping, and backs loose parts with 90-day returns; orders placed before 1:00 pm EST ship the same business day.
How much RAM do I need?
8GB handles web browsing and office work, 16GB is the comfortable standard for multitasking and light creative work, and 32GB or more pays off for video editing, CAD, virtual machines, and heavy engineering software. Servers scale differently: a virtualization host is usually sized at 8–16GB per active VM, so 128GB to 512GB is the common band for a dual-socket box. DIMM population rules also cap what your platform will accept. Send us the model and workload and we will spec it.
Can I install faster memory than my server officially supports?
Yes — the module simply runs at the fastest speed your CPU generation allows. A 3200 MT/s RDIMM on a 2933 MT/s platform works fine at 2933; it will never run faster than the platform ceiling. What matters more is uniformity: keep capacity, rank, and vendor consistent across channels, because mismatched ranks can refuse to boot.
RDIMM or LRDIMM — which one do I need?
RDIMMs are the right answer for most server configurations. LRDIMMs earn their premium only when you are chasing maximum capacity — high-density modules on fully populated dual-socket boards. The two types cannot be mixed in one system, so match whatever is already installed — or send us your server model and current configuration and we will spec the kit.
What if the memory does not POST in my machine?
First check the population rules — slot order, matched pairs, and rank limits catch most no-boot situations on dual-socket boards. If the modules still will not train, contact us: we will troubleshoot the configuration with you, and dead-on-arrival or non-conforming memory is covered by our 90-day return policy at our expense.
How fast will my order ship?
Orders placed before 1:00 pm EST ship the same business day, and ground shipping is free on orders over $35 to the contiguous United States. Want the kit verified first? Send your server model along with the order and we will confirm compatibility before it leaves.