Dell OptiPlex 3070

8th/9th Gen Intel Core business desktop sold as Tower, Small Form Factor and Micro chassis on the Intel H370 chipset. This entry draws on Dell's OptiPlex 3070 Small Form Factor Setup and Specifications guide, which tabulates CPU, memory and storage support across all three chassis, plus the Tower-specific Setup and Specifications pages for physical dimensions and power.

Memory

Slots: 2 DIMM (SODIMM on Micro)
Type: DDR4 Non-ECC
Speed: 2666 MHz on i5/i7 (2400 MHz on Celeron, Pentium and i3)
Minimum: 4 GB
Maximum: 32 GB (all chassis)
Maximum per slot: 16 GB
DIMMs/channel: 2 on Tower/SFF; 1 on Micro
Configurations: 4 GB (1x4), 8 GB (1x8 or 2x4), 16 GB (1x16 or 2x8), 32 GB (2x16)

Storage

Optical drive bay: 1 slim optical drive (Tower and SFF only; not on Micro)
Internal HDD bays: Tower: 1 x 3.5" + 2 x 2.5"; SFF: 1 x 3.5" or 1 x 2.5"; Micro: 1 x 2.5"
3.5" HDD: 500 GB, 1 TB or 2 TB, 7200 RPM (Tower/SFF only)
2.5" HDD: 500 GB (5400 RPM), 1 TB (7200 RPM) or 2 TB (5400 RPM)
2.5" self-encrypting HDD: 512 GB, 7200 RPM
2.5" SSD: 512 GB, only as a secondary drive paired with an M.2 SSD as primary
M.2 SSD (Class 35): 128 GB, 256 GB or 512 GB, PCIe NVMe
M.2 SSD (Class 40, PCIe C40): 256 GB, 512 GB or 1 TB
Intel Optane memory: 16 GB M.2 2280, PCIe Gen 2, cache/accelerator only (not additional storage)

Graphics

Integrated: Intel UHD 630 (8th Gen Core i3/i5/i7) or Intel UHD 610 (Pentium) on CPU, shared system memory
Discrete option 1 (Tower/SFF only): 2 GB AMD Radeon R5 430
Discrete option 2 (Tower/SFF only): 4 GB AMD Radeon RX 550
Discrete option 3 (Tower/SFF only): 2 GB NVIDIA GeForce GT 730
Card profile: Tower supports full-height (FH) cards; Small Form Factor supports low-profile (LP) cards; not available on Micro

Expansion

PCIe x16: 1 slot (Tower/SFF; PCIe 3.0); 1 slot integrated-graphics-only on Micro; 0 on Micro with discrete graphics
PCIe x1: 3 slots (Tower); 1 slot (SFF); 0 (Micro)
M.2 Socket 3 (SSD): 1 x 2230/2280 slot (SATA/PCIe SSD or Optane), all chassis
M.2 Socket 1 (WLAN): 1 x 2230 slot for the Wi-Fi/Bluetooth card, all chassis

Networking

Ethernet: Realtek RTL8111HSD-CG, 10/100/1000 Mbps
Wi-Fi option 1: Qualcomm QCA9377, dual-band 1x1 802.11ac + Bluetooth 4.1
Wi-Fi option 2: Qualcomm QCA61x4A, dual-band 2x2 802.11ac + Bluetooth 4.2
Wi-Fi option 3: Intel Wireless-AC 9560, dual-band 2x2 802.11ac with MU-MIMO + Bluetooth 5

Power

Tower PSU: 260 W internal PSU
Small Form Factor PSU: 200 W internal PSU
Micro adapter: 65 W external adapter
Input voltage: 90-264 VAC, 47-63 Hz (all chassis)
Input current: Tower 4.2 A/2.1 A; SFF 3.2 A/1.6 A; Micro 1.7 A/1.0 A (low/high line)

Ports

USB (Tower/SFF): 2 front + 2 rear USB 2.0; 2 front + 2 rear USB 3.1 Gen 1
USB (Micro): 2 rear USB 2.0 (0 front); 2 front + 2 rear USB 3.1 Gen 1
Video: 1 x DisplayPort 1.2 (rear); 1 x HDMI 1.4 (rear); optional 3rd video port: VGA, DP or HDMI 2.0b
Audio: 1 x line-out (Tower/SFF rear, Micro front); 1 x universal audio jack (front, all chassis)
Network: 1 x RJ-45 (rear, all chassis)
Serial: Optional PCIe or PS/2 add-in serial port

Physical

Tower dimensions: 350 x 154 x 274 mm (13.8 x 6.1 x 10.8 in); chassis volume 14.77 L; weight 7.93 kg (17.49 lb)
Small Form Factor dimensions: 292 x 92.7 x 292.1 mm (11.42 x 3.65 x 11.50 in); chassis volume 7.8 L; weight 5.26 kg (11.57 lb)
Micro dimensions: ~182 x 36 x 178 mm (7.2 x 1.4 x 7.0 in); chassis volume 1.16 L; weight 1.18 kg (2.60 lb)
Shipping weight (Tower): 9.43 kg (20.96 lb), includes packaging

Management

Chipset security: 24 KB TPM 2.0 on chipset; BIOS SPI flash 32 MB
NIC EEPROM: LOM configuration contained within LOM e-fuse; no dedicated LOM EEPROM

Operating systems

Windows: Windows 10 Home (64-bit); Windows 10 Pro (64-bit); Windows 10 Pro National Academic; Windows 10 Home National Academic; Windows 10 China
Linux: Ubuntu 18.04 LTS (64-bit)
China: Neokylin v6.0

Processors

Intel Celeron G4930
Intel Celeron G4930T
Intel Pentium G5420
Intel Pentium G5420T
Intel Pentium G5600
Intel Pentium G5600T
Intel Core i3-9100
Intel Core i3-9100T
Intel Core i3-9300
Intel Core i3-9300T
Intel Core i5-9400
Intel Core i5-9400T
Intel Core i5-9500
Intel Core i5-9500T
Intel Core i7-9700
Intel Core i7-9700T
Intel Core i7-8700
Intel Core i5-8500
Intel Core i5-8400
Intel Core i3-8300
Intel Core i3-8100
Intel Pentium Gold G5500
Intel Pentium Gold G5400
Intel Celeron G4900
Intel Core i7-8700T
Intel Core i5-8500T
Intel Core i5-8400T
Intel Core i3-8300T
Intel Core i3-8100T
Intel Pentium Gold G5500T
Intel Pentium Gold G5400T
Intel Celeron G4900T