Computers / Desktop PCs

DellMainstream desktop PC
Slim Desktop ECS1250
Released March 2025.3Certification listdata.energystar.gov/resource/rxdj-2c88.jsonRead 14 October 2026ENERGY STAR Certified Computers record for ECS1250 (model name D18S) gives date available on market 2025-03-20 (markets United States, Japan, Canada, Taiwan and Switzerland) and date certified 2025-05-09. The record covers a maximum-style Core Ultra 7 265, 64 GB configuration with a 3.5-inch HDD, so it is not used for TEC or other values. Last checked 14 October 2026.
- Form factor
- Small form factor
- Processor
- Intel Core Ultra 5 225
- GPU
- Intel Graphics
- RAM
- 16GB
70 of 160 fields known.
At a glance
User-facing USB ports
4
Higher than 83% of other desktop PCs.
Ports
- 2 USB-A USB 2.0User-facing ports
- USB-A USB 3.2 Gen 1User-facing ports
- USB-C USB 3.2 Gen 1
- 3.5 mm audio Global headset jack
- 2 USB-A USB 2.0Rear ports
- 2 USB-A USB 3.2 Gen 1Rear ports
- DisplayPort 1.4 (HBR3)
- HDMI 2.1 (TMDS)
- Ethernet (RJ45) 1 Gigabit Ethernet
General
- Series
- Not available
- Model numbers
- ECS1250, DECS1250-5194BLK-PUS2Retailer pageamazon.com/dp/B0F2TM49KQRead 14 October 2026Amazon US item model number DECS1250-5194BLK-PUS, model name Dell Slim ECS1250 Desktop. Core Ultra 5-225, 16GB DDR5, 512GB, Style Device Only, Windows 11 Home, Black. Its UPC 884116488194 is in the ENERGY STAR record for ECS1250, so it is a Dell SKU of this model.
- GTIN / EAN
- 8841164881942Retailer pageamazon.com/dp/B0F2TM49KQRead 14 October 2026UPC 884116488194 from the item details. The same UPC is in the ENERGY STAR record.3Certification listdata.energystar.gov/resource/rxdj-2c88.jsonRead 14 October 2026UPC list in the record includes 884116488194.
- Announced
- Not available
- Predecessor
- Not available
- Successor
- Not available
- Launch price (US)
- Not available
- Launch price (EU)
- Not available
Case
Front and side, drawn to scale.
- Case dimensions
- Width95Height303.5Depth293mm(3.7 × 11.9 × 11.5 in)1Maker spec sheet (PDF)delltechnologies.com/asset/en-us/products/desktops-and-all-in-ones/technical-support/dell-slim-ecs1250-spec-sheet.pdfRead 14 October 2026Dimensions row: height 11.95 in (303.50 mm), width 3.74 in (95 mm), depth 11.54 in (293 mm), in the upright orientation. PC Watch's Japan article gives 65 x 293 x 305.5 mm, which does not fit the 8.5L volume, so the maker's figure is used. Amazon US lists the same 11.54 x 3.74 x 11.95 in.5Press articlepc.watch.impress.co.jp/docs/news/1670261.htmlRead 14 October 2026Japan article lists 65 x 293 x 305.5 mm and 3.49 to 4.75 kg. The weights match the spec sheet. The 65 mm width is not used.
- Case model
- Not available
- Side panel
- Not available
- Front panel
- Not available
- Dust filters
- Not available
- VESA mount
- Not available
Display
We could not find any of these 6 fields. Show them
- Screen size
- Not available
- Native resolution
- Not available
- Panel type
- Not available
- Max refresh rate
- Not available
- Touchscreen
- Not available
- Brightness (SDR, claimed)
- Not available
Motherboard
- Motherboard
- Not available
- Motherboard form factor
- Not available
- Expansion slots
Mechanical slot type Count Occupied PCIe x16 1 Not available PCIe x1 2 Not available M.2 E-key 1 Yes Source1Maker spec sheet (PDF)delltechnologies.com/asset/en-us/products/desktops-and-all-in-ones/technical-support/dell-slim-ecs1250-spec-sheet.pdfRead 14 October 2026Expansion slots row: 3 HH PCIe expansion slots (x1, x1, x16). Half-height. Mechanical sizes only. Electrical lanes and generation are not stated. The Amazon US rear-port picture shows three slot covers. The WLAN M.2 row comes from Hardware Corner and is occupied because this configuration has a Wi-Fi 6 card.6Spec databasehardware-corner.net/desktop-models/Dell-Slim-ECS1250Read 14 October 2026Lists PCIe x16 plus two PCIe x1 slots and an M.2 2230 slot for Wi-Fi and Bluetooth. The slot layout matches the spec sheet.- PCIe x16 slots
- 1
- Free expansion slots
- Not available
- Fan headers
- Not available
- Overclocking in BIOS
- Not available
Processor
- Processor
- Intel Core Ultra 5 2251Maker spec sheet (PDF)delltechnologies.com/asset/en-us/products/desktops-and-all-in-ones/technical-support/dell-slim-ecs1250-spec-sheet.pdfRead 14 October 2026Processor options: Intel Core Ultra 5 225 (20 MB cache, 10 cores, 10 threads, 3.30 GHz to 4.90 GHz Turbo, 65 W).
- Processor codename
- Arrow Lake4Maker product pageintel.com/content/www/us/en/products/sku/241070/intel-core-ultra-5-processor-225-20m-cache-up-to-4-90-ghz/specifications.htmlRead 14 October 2026Products formerly Arrow Lake.
- Core configuration
Core type Count Base clock (GHz) Max core turbo clock (GHz) Performance 6 3.3 4.9 Efficiency 4 2.7 4.4 - CPU cores
- 10
- Performance cores
- 6
- Efficiency cores
- 4
- Max core turbo clock
- 4.9GHz
- Peak CPU power (configured)
- Not available
- Unlocked multiplier
- Not available
Cooling
We could not find any of these 6 fields. Show them
- CPU cooler
- Not available
- CPU cooler model
- Not available
- Radiator size
- Not available
- Radiator position
- Not available
- Case fans
- Not available
- Number of case fans
- Not available
Graphics
- GPU
- Not available
- GPU brand
- Not available
- Graphics card
- Not available
- VRAM
- Not available
- VRAM type
- Not available
- GPU board power
- Not available
- GPU boost clock
- Not available
- Graphics card length
- Not available
- Graphics card thickness
- Not available
- GPU power connector
- Not available
Memory
- Rated kit speed
- Not available
- Memory kit
- Not available
- Memory slots
Slot Count Occupied Module size (GB) DIMM 1 Yes 16 DIMM 1 No Not available - RAM slots
- 2
- Free RAM slots
- 1
Storage
- Storage
- 512GB
- Installed drives
Capacity (GB) Type PCIe generation 512 NVMe SSD 4 - Storage slots and bays
Form factor Interface PCIe generation PCIe lanes Count Occupied M.2 2230 PCIe NVMe 4 4 1 Yes 3.5-inch bay SATA Not available Not available 1 No Source1Maker spec sheet (PDF)delltechnologies.com/asset/en-us/products/desktops-and-all-in-ones/technical-support/dell-slim-ecs1250-spec-sheet.pdfRead 14 October 2026SSD options are M.2 2230 PCIe Gen4 NVMe. Hardware Corner says the slot is M.2 2230/2280 with PCIe 4.0 x4, which gives the lane count. Several lengths do not add slots, so one slot is stored. Dell lists a 2 TB 7200 RPM 3.5-inch SATA HDD as a storage option, and PC Watch says the chassis has one 3.5-inch shadow bay. The reference configuration has no HDD, so the bay is free.5Press articlepc.watch.impress.co.jp/docs/news/1670261.htmlRead 14 October 2026Dell Slim has one 3.5-inch shadow bay.6Spec databasehardware-corner.net/desktop-models/Dell-Slim-ECS1250Read 14 October 2026Lists M.2 2230/2280 (PCIe 4.0 x4, NVMe), one SATA port and a 3.5-inch drive bay.- M.2 slots
- 1
- Free M.2 slots
- 0
- Free drive bays
- 1
- Fastest storage-slot PCIe generation
- 4
Power supply
- PSU form factor
- Not available
- Modular cables
- Not available
- PSU model
- Not available
- ATX version
- Not available
- Native 12V-2x6 cable
- Not available
Ports
- User-facing I/O position
- Front1Maker spec sheet (PDF)delltechnologies.com/asset/en-us/products/desktops-and-all-in-ones/technical-support/dell-slim-ecs1250-spec-sheet.pdfRead 14 October 2026Ports row: Front.
- User-facing ports
Type Version Count Max stated link rate (Gbps) USB-A USB 2.0 2 0.48 USB-A USB 3.2 Gen 1 1 5 USB-C USB 3.2 Gen 1 1 5 3.5 mm audio Global headset jack 1 Not available - Rear ports
Type Version Count Max stated link rate (Gbps) Connected to USB-A USB 2.0 2 0.48 Motherboard USB-A USB 3.2 Gen 1 2 5 Motherboard DisplayPort 1.4 (HBR3) 1 Not available Motherboard HDMI 2.1 (TMDS) 1 Not available Motherboard Ethernet (RJ45) 1 Gigabit Ethernet 1 1 Motherboard - User-facing USB ports
- 4
- User-facing USB-C ports
- 1
- Rear USB ports
- 4
- Thunderbolt
- Not available
- Ethernet speed
- 1Gbps
- Discrete GPU output ports
- 0
Wireless
- Wi-Fi bands
- Not available
- Wi-Fi module
- MediaTek Wi-Fi 6 MT79201Maker spec sheet (PDF)delltechnologies.com/asset/en-us/products/desktops-and-all-in-ones/technical-support/dell-slim-ecs1250-spec-sheet.pdfRead 14 October 2026MediaTek Wi-Fi 6 MT7920, 2x2, 802.11ax, MU-MIMO, the only Wi-Fi 6 option on the sheet.
- Wi-Fi antenna
- Not available
- Ethernet controller
- Not available
Camera and audio
We could not find any of these 5 fields. Show them
- Webcam
- Not available
- Built-in speaker drivers
- Not available
- Total speaker power
- Not available
- Microphones
- Not available
- Audio features
- Not available
Lighting
We could not find any of these 4 fields. Show them
- RGB lighting
- Not available
- Lit parts
- Not available
- Lighting standard
- Not available
- Lighting software
- Not available
Software
- Operating system
- Windows 11 Home2Retailer pageamazon.com/dp/B0F2TM49KQRead 14 October 2026Operating System Windows 11 Home. The spec sheet also offers Pro, Pro National Education and Ubuntu.
- Control software
- Not available
Upgradeability
We could not find any of these 4 fields. Show them
- Proprietary parts
- Not available
- Max graphics card length
- Not available
- Max CPU cooler height
- Not available
- Warranty kept after upgrade
- Not available
Measured performance
We could not find any of these 8 fields. Show them
- Cinebench 2024 single-core
- Not available
- Cinebench 2024 multi-core
- Not available
- Geekbench single-core
- Not available
- Geekbench multi-core
- Not available
- 3DMark Time Spy graphics
- Not available
- 3DMark Steel Nomad
- Not available
- SSD sequential read (measured)
- Not available
- Game frame rates
- Not available
Measured noise and temperature
We could not find any of these 6 fields. Show them
- Fan noise per load
- Not available
- Highest measured fan noise
- Not available
- Measured fan noise at idle
- Not available
- CPU temperature in stress test
- Not available
- CPU clock in stress test
- Not available
- GPU temperature while gaming
- Not available
Measured power
We could not find any of these 6 fields. Show them
- Power draw idle
- Not available
- Power draw gaming
- Not available
- Power draw max
- Not available
- Power draw sleep or off
- Not available
- Sustained CPU power (measured)
- Not available
- GPU power while gaming (measured)
- Not available
Certifications
- ENERGY STAR
- Yes1Maker spec sheet (PDF)delltechnologies.com/asset/en-us/products/desktops-and-all-in-ones/technical-support/dell-slim-ecs1250-spec-sheet.pdfRead 14 October 2026Page 2: Dell Slim is certified ENERGY STAR. The ENERGY STAR certified computers list has model number ECS1250.3Certification listdata.energystar.gov/resource/rxdj-2c88.jsonRead 14 October 2026Record lists Dell ECS1250, Desktop, with the UPC of the reference SKU.
- Copilot+ PC
- Not available
- Typical annual energy consumption (TEC)
- Not available
- Other certifications
- Not available
In the box
- In the box
- Dell Slim ECS1250 Desktop, Dell Wired Keyboard - KB216 - US English - Black, Dell Wired Mouse - MS116 - Black, Documentation, Power Cord2Retailer pageamazon.com/dp/B0F2TM49KQRead 14 October 2026What's in the box: Dell Slim ECS1250 Desktop, Dell Wired Keyboard KB216 US English Black, Dell Wired Mouse MS116 Black, Power Cord, Documentation.
- Included extras
- Keyboard, Mouse2Retailer pageamazon.com/dp/B0F2TM49KQRead 14 October 2026Keyboard and mouse from the in-the-box list.
Warranty
Links
- Product page
- www.dell.com/de-ch/shop/desktops/dell-slim-desktop/spd/dell-ecs1250-slim-desktop/bdecs1250021Maker spec sheet (PDF)delltechnologies.com/asset/en-us/products/desktops-and-all-in-ones/technical-support/dell-slim-ecs1250-spec-sheet.pdfRead 14 October 2026Dell Switzerland store page for the ECS1250 Slim Desktop, from the task brief. dell.com is blocked for agents, so the page was not opened. Specs here come from the spec sheet and the listings.
- Spec sheet
- www.delltechnologies.com/asset/en-us/products/desktops-and-all-in-ones/technical-support/dell-slim-ecs1250-spec-sheet.pdf1Maker spec sheet (PDF)delltechnologies.com/asset/en-us/products/desktops-and-all-in-ones/technical-support/dell-slim-ecs1250-spec-sheet.pdfRead 14 October 2026Four-page Dell Slim (ECS1250) spec sheet, PDF created 2025-01 and marked Early spec sheet, RTO 3/25. It covers the whole family: Core i3, i5, i7 and Core Ultra 5 and 7 processors. Every stored value is matched to the Core Ultra 5 225, 16 GB, 512 GB configuration sold on Amazon US as DECS1250-5194BLK-PUS. The sheet's chipset row is empty.
- Manual
- Not available
- EPREL registration number
- Not available
Compare with
Pick a desktop PC to see both side by side. Differences are marked yellow.
Sources
We read 6 sources for this desktop PC. The numbers match the markers in the sheet.
- Retailer pageamazon.com/dp/B0F2TM49KQ
- Certification listdata.energystar.gov/resource/rxdj-2c88.json
- Press articlepc.watch.impress.co.jp/docs/news/1670261.html
- Spec databasehardware-corner.net/desktop-models/Dell-Slim-ECS1250
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