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Dell Pro Slim Plus QBS1250 vs Dell Pro Micro Desktop MFF

Both are Dell business desktops with Windows 11 Pro and 32 GB of RAM, so the choice comes down to size versus expandability. The Pro Slim Plus QBS1250 has the stronger Core Ultra 7 chip, a DVD writer, room for a 3.5-inch drive and tool-less access, but it is a 14.5 lb tower that needs a wired network connection. The Pro Micro MFF is a 2.56 lb micro form factor with double the storage at 2 TB, yet it trades away the optical drive, internal bays and easy upgrades. Buy the Slim Plus if you want a desk-side machine you can open and grow; buy the Micro if desk space and a clean setup matter more.

  • Choose the Dell Pro Slim Plus if you want the faster Core Ultra 7 processor, a DVD writer and room to add drives and memory later.
  • Choose the Dell Pro Micro MFF if you want a tiny 2.56 lb machine with 2 TB of storage that disappears behind a monitor.

Prices

  • Dell Pro Slim Plus QBS1250: $1,499.99 at Amazon (checked today)
  • Dell Pro Micro Desktop MFF: $1,399.99 at Best Buy (last seen Nov 10)
  • Difference: the Dell Pro Micro Desktop MFF is $100.00 cheaper than the Dell Pro Slim Plus QBS1250 at the latest prices (Nov 10 and Nov 11)
Dell
Dell Pro Slim Plus QBS1250 Desktop Computer

Dell Pro Slim Plus QBS1250

Dell Pro Slim Plus QBS1250 Desktop Computer

5(75 ratings)
$1,499.99at AmazonChecked 4 h ago
See all prices and details
Visit Amazon

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Pros
  • Core Ultra 7 with 20 cores and a dedicated NPU for on-device AI tasks
  • Tool-less chassis makes memory and storage upgrades easy
  • DVD writer handles legacy media and backups
  • 3-year onsite service included
  • ENERGY STAR qualified with a 260 W supply
Cons
  • No Wi-Fi card, so it needs a wired connection or an add-in card
  • 512 GB SSD is small next to the Micro's 2 TB
  • 14.5 lb tower takes real desk space
  • Integrated graphics limit gaming and heavy GPU work
Dell
Dell Pro Micro Desktop MFF

Dell Pro Micro Desktop MFF

$1,399.99at Best BuyChecked 12 h ago
See all prices and details
Visit Best Buy

Store links may earn us a commission. Price via Klarna.

Pros
  • Very small and light at 2.56 lb
  • 2 TB SSD holds far more out of the box
  • 32 GB RAM and Windows 11 Pro match the Slim Plus
  • Easy to tuck behind a monitor or under a desk
Cons
  • Core Ultra 5 is a step below the Ultra 7
  • No optical drive and little internal expansion
  • No listed Wi-Fi or warranty details
  • Micro chassis limits later graphics upgrades

What separates them

Dell Pro Slim Plus QBS1250Dell Pro Micro Desktop MFF
Form factor and weightSlim tower, 14.51 lb, 3.74 in wideMicro form factor, 2.56 lb
ProcessorIntel Core Ultra 7, 20 cores, up to 5.3 GHz, 30 MB L3Intel Core Ultra 5
Storage512 GB SSD, one 3.5-inch bay available2 TB SSD
Optical driveDVD writer includedNone
UpgradabilityTool-less access, memory, storage and graphics can be expandedCompact sealed chassis, limited internal expansion
NetworkingGigabit Ethernet and Bluetooth, no Wi-Fi cardNot specified in the listing
Power supply260 W internal, ENERGY STAR qualifiedExternal compact supply typical of micro desktops
Warranty3-year basic onsite service after remote diagnosisNot specified

Price history

  • Dell Pro Slim Plus QBS1250: lowest $1,129.00 on Nov 11 at Best Buy.
  • Dell Pro Micro Desktop MFF: lowest $1,399.99 on Nov 11 at Best Buy.

Prices at every store

Dell Pro Slim Plus QBS1250

  • Best BuyNew

    In stock

    $1,549.99Checked 5 h ago
    Visit Best Buy
  • SilariusNew

    In stock

    $1,658.99Checked 13 h ago
    Visit Silarius
  • SystemsDirect.comNew

    In stockReturn policy

    $1,683.99Checked 13 h ago
    Visit SystemsDirect.com
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $1,499.99Free shippingChecked 4 h ago
    Visit Amazon

Also available at

  • Westend Enterprises Unlimited, Inc.Check price at Westend Enterprises Unlimited, Inc.
All 22 stores and price history →

Dell Pro Micro Desktop MFF

  • Best BuyNew

    In stock

    $1,399.99Free shippingChecked 12 h ago
    Visit Best Buy

Store links may earn us a commission. Price via Klarna.

Prices and history →

Specs compared

SpecDell Pro Slim Plus QBS1250Dell Pro Micro Desktop MFF
Windows VersionWindows 11 ProWindows 11 Pro
colorStandard BlackBlack
ProcessorIntel Core Ultra 7Intel Core Ultra 5
SSD Size1 TB2 TB
Operating SystemWindowsWindows
RAM32 GB32 GB
Screen SizeNo Screen16.0
Supported OSWindows—
OS VersionWindows 11 Pro—
Typical UsersBusiness users—
Form FactorSlim Plus—
TypeDesktop Computer—
Show all 40 specsShow fewer specs
SpecDell Pro Slim Plus QBS1250Dell Pro Micro Desktop MFF
Desktop Monitor BundleNo—
Dimensions3.74" (95 mm) (width)—
Weight14.51 lb (6580 g)—
Internal Storage TypeSSD—
Number Of CPU Cores20 cores—
CPU Clock Speedup to 5.3GHz—
RAM TypeDDR5—
CPU Cache30 MB (L3 cache)—
Motherboard ChipsetIntel—
With 4K Graphics

What reviewers say

Dell Pro Slim Plus QBS1250

  • 5 / 575 ratings

Owners rate it highly, praising the fast Core Ultra 7 performance, quiet slim build and easy internal access. The main complaint is the missing wireless card, which forces a wired connection or an add-in card.

What people mention
  • PerformancePraisedOwners say the Core Ultra 7 and 32 GB of memory keep everyday business tasks and multitasking fast.
  • SizePraisedReviewers like the slim chassis, saying it takes little desk space and runs quietly.
  • UpgradesPraisedTool-less access makes adding memory or storage simple, according to owners.
  • WirelessCriticisedBuyers complain that no Wi-Fi card is included, so a wired connection or add-in card is needed.

Questions and answers

Which is better for office work and multitasking?
The Pro Slim Plus. Its Core Ultra 7 has 20 cores and reaches 5.3 GHz, which helps with heavy multitasking, large spreadsheets and on-device AI features. The Micro's Core Ultra 5 is fine for everyday office work but has less headroom.
Which has more storage?
The Pro Micro MFF, with a 2 TB SSD against 512 GB in the Slim Plus. The Slim Plus can close the gap because it has an open 3.5-inch bay and tool-less access for adding a drive.
Do either of them have Wi-Fi?
The Slim Plus lists Bluetooth and Gigabit Ethernet but no wireless LAN card, so plan on a wired connection or an add-in card. The Micro listing does not specify Wi-Fi either, so confirm before buying.
Which is easier to upgrade?
The Pro Slim Plus. Dell gives it tool-less access and space for memory, storage and graphics changes. The Micro form factor is compact and leaves little room inside.
Is the Slim Plus worth stepping up to over the Micro?
Yes if you need the faster CPU, an optical drive or future expansion. The Micro makes more sense if desk space is tight and 2 TB of storage covers your needs.
Which lasts longer?
Both are business-grade Dell machines with Windows 11 Pro. The Slim Plus has the edge on service life because its 3-year onsite warranty and upgrade path let you add storage and memory instead of replacing the whole unit.

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  • Dell ECT1250 Desktop Computer vs Dell Pro Micro Desktop MFF
  • Dell Slim ECS1250 Desktop vs Dell Pro Micro Desktop MFF

Buying guides that pick them

  • Best Dell slim desktop computers with 32GB RAM
Yes
—
Included Drives512 GB SSD—
Number Of Drive BaysNo (external bays), 1x 3.5" Bay [Available]—
Wi-FiNo Wireless LAN Card—
BluetoothYes—
EthernetGigabit Ethernet—
Power Supply Wattage260W—
Energy Efficiency CertsENERGY STAR Qualified—
KeyboardYes, No—
edition32GB|1TB—
TouchscreenNo—
Memory Support (max) (GB)32—
Hard DriveSSD—
Memory Card ReaderNo—
Memory TypeDDR5—
Release Year2025—
Processor Model265—
Sound CardYes—
Optical DriveNo—