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Dell Slim Desktop (2025 - Present)

Model ECS1250

Processor:

Cosmetic Condition:

Functionality:

The Dell Slim Desktop, model ECS1250, is Dell's compact consumer tower, introduced in 2025 and still on sale through 2026. It arrived as part of the rename that retired the Inspiron desktop name, so this is the machine that now sits where an Inspiron small-form-factor tower used to. Dell built it in one chassis with many processor choices — Intel Core i3 14100, Core i5 14400, Core i7 14700, Core Ultra 5 225, and Core Ultra 7 265 — which is why the same-looking tower can be worth very different amounts. The whole machine is under four inches wide and starts at 7.69 pounds, so unlike most desktops it ships easily and inexpensively. A lot of people assume a used desktop is only worth recycling. It usually is not. Gadget Salvation buys the Dell Slim outright for cash, with free insured shipping and no selling fees. Select your processor above for an instant offer.

Make sure you have the Slim (ECS1250)

Dell sells several desktops that share this styling and naming pattern. The model code printed on the chassis is what separates them, and the shape gives it away too.

This page: Dell Slim, ECS1250

  • Model code ECS1250
  • Narrow tower — about 3.74 inches wide, 11.95 inches tall
  • Half-height (low-profile) expansion slots only
  • 180W internal power supply

Not this page: Dell Tower, ECT1250

  • Model code ECT1250
  • A noticeably wider full-size tower with full-height PCIe slots
  • Supports dual-channel memory up to 5600 MT/s and larger graphics cards
  • Find it in our desktop trade-in catalog

Not this page: Dell Tower Plus, EBT2250

  • Model code EBT2250
  • The largest of the three consumer towers, aimed at heavier graphics and cooling

Not this page: Dell Pro Slim, QCS1250

  • Model code QCS1250 — the business line that replaced the OptiPlex name
  • Similar footprint, different motherboard, different warranty and management features
  • Often arrives from a company fleet rather than a home, so check FAQ 05 about device management

Where to find the model code and Service Tag, step by step. Both are printed on the machine:

  • Look at the front and the back. Dell prints a small label with the Service Tag — a seven-character mix of letters and numbers — plus the model name. On the Slim it sits on the front panel and again on the rear.
  • Ask Windows. Hold the Windows key and press R, type msinfo32, then press Enter. System Model shows the model code and System SKU shows the Dell order code. Processor a few lines down gives you the exact chip for the selector above.
  • Use Dell's own tool. If SupportAssist is installed, opening it shows the model and Service Tag on the first screen.
  • Check memory and storage while you are there: Windows key + I, then System → About for installed RAM and System → Storage for drive size. FAQ 04 explains why those are worth noting.

More detail is on our guide to finding your gadget's model number and our guide to finding your processor type.

Core hardware configurations

Processor (CPU)

  • Intel Core i3 14100 — 4 cores, 8 threads, 12MB cache, up to 4.7 GHz
  • Intel Core i5 14400 — 10 cores (6P + 4E)
  • Intel Core i7 14700 — 20 cores (8P + 12E)
  • Intel Core Ultra 5 225 — 10 cores, Core Ultra Series 2 with an on-chip NPU
  • Intel Core Ultra 7 265 — 20 cores, 30MB cache, Core Ultra Series 2 with an on-chip NPU
  • The 14th Gen Core chips have no NPU; only the Core Ultra models do

Graphics (GPU)

  • Intel UHD Graphics 730 on 14th Gen Core builds; Intel integrated graphics on Core Ultra builds
  • One half-height PCIe x16 slot accepts an optional discrete card — Dell offered AMD and NVIDIA options, and owners frequently add their own
  • Because the slot is half-height, only low-profile cards fit, and the 180W power supply caps how much card the machine can run
  • If a discrete card is installed, plug your monitor into the card rather than the motherboard

Memory (RAM)

  • DDR5, with two UDIMM slots on the board (DIMM1 and DIMM2)
  • Upgradable to 64GB total
  • Entry builds shipped a single 8GB stick, which runs in single-channel mode until a second matching stick is added
  • Speeds vary by processor — 14th Gen builds run DDR5-4800, Core Ultra builds run faster

Storage

  • One M.2 2230/2280 slot for a PCIe NVMe SSD, up to 2TB
  • One SATA 3.0 bay for a 3.5-inch hard drive — unusual on a compact machine this size, and a real selling point
  • Two drive bays total: one SSD plus one hard drive
  • No optical drive in any configuration

Chassis, power supply & expansion

Form factor

A slim vertical tower measuring 11.95" tall × 3.74" wide × 11.54" deep (303.5 × 95 × 293 mm), built in black with recycled materials and rounded corners. Tool-less entry and a removable left side panel mean the inside opens without a screwdriver.

Power supply

A 180W 80 PLUS Bronze internal power supply, the same unit across every configuration. That figure is the practical ceiling on what graphics card this chassis can take, and it is worth knowing before anyone plans an upgrade.

Expansion slots

One half-height PCIe Gen3 x16 slot plus two half-height PCIe Gen3 x1 slots — three in total, enough for a low-profile graphics card, a sound card, or a network card. Separate M.2 slots handle the SSD and the wireless card.

Cooling & noise

Standard air cooling with the stock Intel cooler and a single chassis exhaust. Quiet running is one of the things owners consistently mention about this model.

Weight

Starting at 7.69 lb (3.49 kg), rising to about 10.5 lb (4.75 kg) fully loaded — light enough that shipping it is straightforward.

Operating system & accessories

Windows 11 Home or Windows 11 Pro depending on the SKU, with Ubuntu Linux 24.04 LTS offered on some builds. Retail units shipped with a Dell KB216 wired keyboard and MS116 wired mouse, plus a detachable power cord. No monitor was included.

Ports & connectivity

Eight USB ports in total, four of them on the front, which is generous for a chassis this narrow.

Front panel
  • 2× USB 2.0 Type-A (480 Mbps)
  • 1× USB 3.2 Gen 1 Type-A (5 Gbps)
  • 1× USB-C 3.2 Gen 1 (5 Gbps)
  • 1× headset jack
  • Media card reader (SD 3.0, optional on some builds)
  • Power button
Rear panel
  • 2× USB 2.0 Type-A with Smart Power On
  • 2× USB 3.2 Gen 1 Type-A (5 Gbps)
  • 1× HDMI 2.1
  • 1× DisplayPort 1.4 (HBR3 on Core Ultra builds, HBR2 on 14th Gen Core builds)
  • 1× RJ-45 Gigabit Ethernet
  • Power connector and Kensington lock slot

Not included on the Dell Slim: there are no rear audio jacks — the only audio connection is the headset jack on the front, which surprises people setting up desktop speakers. There is also no Thunderbolt, no optical drive, no internal speaker, and no webcam.

Wi-Fi 6 or Wi-Fi 6E Bluetooth Gigabit Ethernet TPM security chip 180W Bronze PSU

Wireless hardware varies by build: some units carry a MediaTek Wi-Fi 6 MT7920 (2×2, 802.11ax) card, others an Intel Wi-Fi 6E AX211 with Bluetooth 5.3. Both sit in a dedicated M.2 2230 slot, and audio is handled by a Realtek ALC3204 controller.

Frequently asked questions

01 How do I find my model number and which processor I have?
Start with the label. Dell prints a small tag on the front panel and another on the back showing the model name and a Service Tag — seven characters, a mix of letters and numbers. That Service Tag is Dell's unique identifier for your exact machine, and typing it into Dell's support site pulls up the original build sheet with the processor, memory, and drive it left the factory with. It is the single most useful thing on the whole computer. If the label is gone, Windows will tell you. Hold the Windows key, press R, type msinfo32, and press Enter. Read System Model for the model code and Processor for the chip. The processor line will say something like Intel(R) Core(TM) i3-14100 or Intel(R) Core(TM) Ultra 5 225 — match whichever you see to the selector above. One thing to watch: a Core i3 14100 is not the same as a Core Ultra 5 225, even though both are 2025-era chips in the same chassis. The word "Ultra" is what matters. If your processor line has no "Ultra" in it, choose the 14th Gen option. Our processor type guide walks through it with pictures, and you can send us a photo of the label if you would rather we identified it.
02 My Dell is also a slim desktop. How do I know it is the ECS1250?
Check the model code first, then confirm with the shape. This page covers only towers whose code reads ECS1250. If it reads ECT1250, you have the Dell Tower — a wider machine with full-height expansion slots rather than the half-height slots in the Slim. If it reads EBT2250, you have the Dell Tower Plus. If it reads QCS1250, you have the Dell Pro Slim, which is the business line that took over from the OptiPlex name. A quick physical check: open the side panel and look at the expansion slots. The Slim takes only low-profile cards — a full-size graphics card physically cannot fit. If there is a full-height card in there, you are looking at a Tower. And if your machine is badged Inspiron or OptiPlex, it predates this generation entirely. Those are quoted separately in our desktop catalog. Quoting the wrong model means the offer gets revised after our technicians inspect it, so it is worth the extra minute.
03 Will you buy it if I upgraded the parts, or if something has failed?
Yes to both, and upgrades are common on this machine because the side panel comes off without tools. Quote what is inside it now, not what Dell shipped. If you added a second memory stick, a 3.5-inch hard drive in the spare bay, a larger SSD, or a low-profile graphics card, those parts stay with the tower and are reflected in the offer. If you pulled the graphics card out to keep it, quote the machine without one. If something has failed, mark it above: power faults, defective hardware, missing or defective storage, or other malfunctioning issues. We buy non-working Dell Slim towers too. Two practical notes. First, include the power cord — it is a standard detachable cable, but without one the tower cannot be tested and the offer drops. The keyboard and mouse are welcome but not required. Second, if you swapped the 180W power supply for something larger to run a bigger graphics card, say so in the order notes, since a non-standard PSU changes what we are receiving.
04 What is a trade-in, and what raises a Dell Slim's value?
Most people never find out a used desktop is worth real money. The assumption is that it goes to a recycling center, or onto a marketplace where you deal with lowball offers and a stranger at your door. There is a third route: a direct cash buyback. Gadget Salvation has bought pre-owned electronics since 2008. You pick your processor above, lock in a firm offer, print a free insured UPS label, ship the tower, and get paid — no listing, no photos, no haggling, no selling fees. See how the process works, or read our guide to selling a used computer for the most cash and the least hassle. Processor is the selector above and the main lever. A 20-core Core Ultra 7 265 is worth considerably more than a 4-core Core i3 14100 — at retail those two builds were roughly $750 and $1,189 apart in configuration, and that gap carries through to resale. Three more things move the number and none of them appear on the form. Memory: the board takes up to 64GB across two slots, and an entry build with a single 8GB stick is a very different machine from a 32GB or 64GB one. Storage: the M.2 slot takes up to 2TB, and the spare 3.5-inch bay means many of these have a second drive in them. A discrete graphics card in the PCIe slot adds real value, since the card alone has its own resale market. So if your tower has more than 16GB of memory, more than 512GB of storage, or a graphics card fitted, request a custom quote instead of taking the standard figure and we will price the actual machine. Clearing out several? Offices and classrooms go through corporate device buyback, school device buyback, and bulk trade-in. More Dell-specific tips are in our post on where to sell a Dell for cash.
05 How do I wipe it, and how should I pack a desktop?
Back up anything you want to keep first — documents, photos, tax records, browser passwords — to an external drive or cloud storage. Then sign out of your Microsoft account, deauthorize any software tied to the machine, and reset it: Settings → System → Recovery → Reset this PC → Remove everything. Check both drives. This chassis holds an SSD and a 3.5-inch hard drive, and a Windows reset only wipes the drive Windows is installed on. If there is a second drive in the machine, open File Explorer and look under This PC — any drive letter beyond your C: drive needs clearing separately, or you can simply tell us in the order notes and we will handle it. If the tower came from an employer or a school, ask their IT team to release it from Intune or their other device management enrollment before you ship. A managed machine cannot be fully cleared by the person holding it. You do not need to open the case or remove any drives. Everything we receive goes through our certified erasure process, documented on the data erasure protocols page. To pack: the tower and the power cord. Keyboard and mouse optional, monitor not needed. At under eight pounds this ships more easily than most desktops, but use a sturdy double-walled box with at least two inches of padding on every side — the internal cooler and any expansion card are the parts that suffer in transit. Our shipping instructions cover it, and the label is free and fully insured. Once it arrives and passes inspection, payment goes out within two business days by PayPal, Venmo, Zelle, CashApp, or a mailed check.