Dell Dell Pro Tower (QCT1255)
Dell's 2025 entry-level Pro Tower desktop, built on AMD Ryzen 8000G/Ryzen AI 400 series desktop APUs in a compact 154 x 293 mm chassis with a single PCIe x16 slot and one M.2 SSD slot.
Memory
- Slots
- 2 x DDR5 UDIMM
- Speed
- 4800 MT/s for Ryzen 8000-series processors; 5600 MT/s for Ryzen AI 400-series processors
- Max / min
- 64 GB max (2 x 32 GB); 8 GB min
- Configurations (Ryzen 8000 series)
- 8 GB (1x8), 16 GB (1x16 or 2x8), 32 GB (1x32 or 2x16), 64 GB (2x32), single/dual-channel, up to 4800 MT/s
- Configurations (Ryzen AI 400 series)
- 8 GB (1x8), 16 GB (1x16 or 2x8), 32 GB (1x32 or 2x16), 64 GB (2x32), single/dual-channel, up to 5600 MT/s
Storage
- M.2 slot
- 1 x M.2 2230/2280 PCIe Gen4x4 NVMe slot; QLC or TLC SSD up to 1 TB; this is the primary drive when populated
- SATA bays
- 1 x SATA 3.0 slot for 3.5" HDD (up to 4 TB) + 1 x SATA 3.0 slot for 3.5" HDD or slimline optical drive
- Optical
- 9.5 mm 8x slimline DVD-RW drive, optional (SATA AHCI, up to 1.5 Gbps)
Graphics
- Integrated - Ryzen 3/5 8300G/8500G
- AMD Radeon 740M Graphics
- Integrated - Ryzen 5 8600G
- AMD Radeon 760M Graphics
- Integrated - Ryzen 7 8700G
- AMD Radeon 780M Graphics
- Integrated - Ryzen AI 5 435G/440G
- AMD Radeon 840M Graphics
- Integrated - Ryzen AI 7 450G
- AMD Radeon 860M Graphics
- Discrete
- NVIDIA RTX A400, 4 GB GDDR6, four Mini DisplayPort 1.4a outputs
Expansion
- Slots
- 1 full-height PCIe x16 slot (wired x4 or x8 depending on processor), 2 full-height PCIe x1 slots
- Wireless
- 1 M.2 2230 slot for Wi-Fi/Bluetooth combo card
Networking
- Ethernet
- Realtek RTL8111EPP, 10/100/1000 Mbps
- Wi-Fi option 1
- MediaTek Wi-Fi 6 MT7920, 2x2, up to 1200 Mbps, 2.4/5 GHz, Bluetooth 5.4
- Wi-Fi option 2
- MediaTek Wi-Fi 7 MT7925, 2x2, up to 5760 Mbps, 2.4/5/6 GHz, Bluetooth 5.4
Power
- PSU options
- 180 W internal PSU, 80 PLUS Bronze; 360 W internal PSU, 80 PLUS Platinum
- Input
- 90-264 VAC, 47-63 Hz
- Connectors (180 W)
- 1 x 4-pin + 1 x 8-pin processor connectors
- Connectors (360 W)
- 2 x 4-pin processor connectors, 1 x 8-pin system-board connector, 1 x 8-pin graphics-card connector (included only with a discrete GPU that needs it)
Ports
- Front
- 2 x USB 2.0 (480 Mbps), 1 x USB 3.2 Gen 1 (5 Gbps) Type-C, 1 x USB 3.2 Gen 1 (5 Gbps), 1 x global headset port, optional slimline optical drive
- Rear fixed
- 1 x DisplayPort 1.4a (HBR3), 1 x HDMI 2.1 (TMDS), 2 x USB 3.2 Gen 1 (5 Gbps), 2 x USB 2.0 with SmartPower On, 1 x RJ45 (1 Gbps)
- Rear optional module (mutually exclusive)
- VGA; or HDMI 2.1 (FRL10 for Ryzen 8000 / FRL12 for Ryzen AI 400) + VGA + DisplayPort 1.4a (HBR3, Ryzen 8000) / DisplayPort 2.1 (UHBR10, Ryzen AI 400); or 2 x USB 3.2 Gen 2 (10 Gbps); or 1 x USB 3.2 Gen 2 (10 Gbps) Type-C with DisplayPort Alt Mode
- Peripheral
- 1 legacy serial port, optional
- Security
- 1 padlock ring, 1 Kensington security-cable slot
Physical
- Dimensions
- 324.30 x 154 x 293 mm (12.77 x 6.06 x 11.54 in), H x W x D
- Weight
- 4.35-6.76 kg (9.59-14.91 lb), depends on configuration
Management
- Security
- Chassis intrusion switch, chassis lock slot, Kensington security-cable slot, padlock ring, lockable cable covers, local hard-drive Secure Erase, Microsoft Device Guard/Credential Guard (Enterprise SKU), Microsoft BitLocker, Dell SafeBIOS, Dell SafeID with TPM 2.0, self-encrypting drives (Opal/FIPS), FIPS smart-card keyboard, supply-chain tamper alerts, Post-Quantum Cryptography (PQC), TPM 2.0
Operating systems
- Windows
- Windows 11 Home, Windows 11 Pro, Windows 11 Pro Education
- Linux
- Ubuntu Linux 24.04 LTS
Processors
- AMD Ryzen 3 8300G
- AMD Ryzen 3 PRO 8300G
- AMD Ryzen 5 8500G
- AMD Ryzen 5 PRO 8500G
- AMD Ryzen 5 8600G
- AMD Ryzen 5 PRO 8600G
- AMD Ryzen 7 8700G
- AMD Ryzen 7 PRO 8700G
- AMD Ryzen AI 5 435G
- AMD Ryzen AI 5 440G
- AMD Ryzen AI 7 450G
- AMD Ryzen AI 5 PRO 435G
- AMD Ryzen AI 5 PRO 440G
- AMD Ryzen AI 7 PRO 450G