![Amazon.com: A-Tech 4GB RAM for HP PRODESK 400 G3 SFF | DDR4 2133MHz DIMM PC4-17000 288-Pin Non-ECC UDIMM Memory Upgrade Module : Electronics Amazon.com: A-Tech 4GB RAM for HP PRODESK 400 G3 SFF | DDR4 2133MHz DIMM PC4-17000 288-Pin Non-ECC UDIMM Memory Upgrade Module : Electronics](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/71-n-wW5IiL.jpg)
Amazon.com: A-Tech 4GB RAM for HP PRODESK 400 G3 SFF | DDR4 2133MHz DIMM PC4-17000 288-Pin Non-ECC UDIMM Memory Upgrade Module : Electronics
![4GB Memory for HP ProDesk 400 G3 Microtower PC DDR4 2133MHz DIMM RAM (PARTS-QUICK Brand) at Amazon.com 4GB Memory for HP ProDesk 400 G3 Microtower PC DDR4 2133MHz DIMM RAM (PARTS-QUICK Brand) at Amazon.com](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/51PcC13N8AL.jpg)
4GB Memory for HP ProDesk 400 G3 Microtower PC DDR4 2133MHz DIMM RAM (PARTS-QUICK Brand) at Amazon.com
![Li-Sun 240W Power Supply Replacement for HP ProDesk 400 600 800 G1 G2 SFF(P/N: 702307-001,702307-002, 751884-001, 751886-001, 796351-001, 702457-001), Also Works for HP Desktop with 200W Power Supply Li-Sun 240W Power Supply Replacement for HP ProDesk 400 600 800 G1 G2 SFF(P/N: 702307-001,702307-002, 751884-001, 751886-001, 796351-001, 702457-001), Also Works for HP Desktop with 200W Power Supply](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/71JWXUETmLL._AC_UF894,1000_QL80_.jpg)
Li-Sun 240W Power Supply Replacement for HP ProDesk 400 600 800 G1 G2 SFF(P/N: 702307-001,702307-002, 751884-001, 751886-001, 796351-001, 702457-001), Also Works for HP Desktop with 200W Power Supply
![Amazon.com: HP ProDesk 400 G3 Mini Computers Office Micro Desktop,i5 Tiny Desktop PC WiFi Business,6500t,8GB DDR4,256GB SSD,Built in WiFi+BT,HDMI,Windows 10,Wireless Keyboard and Mouse + TJJ Mouse Pad(Renewed) : Electronics Amazon.com: HP ProDesk 400 G3 Mini Computers Office Micro Desktop,i5 Tiny Desktop PC WiFi Business,6500t,8GB DDR4,256GB SSD,Built in WiFi+BT,HDMI,Windows 10,Wireless Keyboard and Mouse + TJJ Mouse Pad(Renewed) : Electronics](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/71nddKoWrmL.jpg)
Amazon.com: HP ProDesk 400 G3 Mini Computers Office Micro Desktop,i5 Tiny Desktop PC WiFi Business,6500t,8GB DDR4,256GB SSD,Built in WiFi+BT,HDMI,Windows 10,Wireless Keyboard and Mouse + TJJ Mouse Pad(Renewed) : Electronics
![Amazon.com: HP ProDesk 400 G3 Small Form Factor, Intel Core Quad i5 6500 up to 3.6 GHz, 16GB DDR4, 512GB SSD, WiFi, BT 4.0, DVDRW, VGA, DP, Windows 10 Pro 64-Multi-Language Support Amazon.com: HP ProDesk 400 G3 Small Form Factor, Intel Core Quad i5 6500 up to 3.6 GHz, 16GB DDR4, 512GB SSD, WiFi, BT 4.0, DVDRW, VGA, DP, Windows 10 Pro 64-Multi-Language Support](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/61QNfePRWZS._AC_UF350,350_QL80_.jpg)
Amazon.com: HP ProDesk 400 G3 Small Form Factor, Intel Core Quad i5 6500 up to 3.6 GHz, 16GB DDR4, 512GB SSD, WiFi, BT 4.0, DVDRW, VGA, DP, Windows 10 Pro 64-Multi-Language Support
![HP Business Desktop ProDesk 400 G6 Desktop Computer - Intel Core i5 9th Gen i5-9500 3 GHz - 8 GB RAM DDR4 SDRAM - 256 GB SSD - Small Form Factor HP Business Desktop ProDesk 400 G6 Desktop Computer - Intel Core i5 9th Gen i5-9500 3 GHz - 8 GB RAM DDR4 SDRAM - 256 GB SSD - Small Form Factor](https://images-na.ssl-images-amazon.com/images/I/914mUMXoNWL._AC_UL600_SR600,600_.jpg)
HP Business Desktop ProDesk 400 G6 Desktop Computer - Intel Core i5 9th Gen i5-9500 3 GHz - 8 GB RAM DDR4 SDRAM - 256 GB SSD - Small Form Factor
![Amazon.com: HP ProDesk 400 G3 Small Form Factor, Intel Core Quad i5 6500 up to 3.6 GHz, 16GB DDR4, 512GB SSD, WiFi, BT 4.0, DVDRW, VGA, DP, Windows 10 Pro 64-Multi-Language Support Amazon.com: HP ProDesk 400 G3 Small Form Factor, Intel Core Quad i5 6500 up to 3.6 GHz, 16GB DDR4, 512GB SSD, WiFi, BT 4.0, DVDRW, VGA, DP, Windows 10 Pro 64-Multi-Language Support](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/61JBDtwsFFS.jpg)
Amazon.com: HP ProDesk 400 G3 Small Form Factor, Intel Core Quad i5 6500 up to 3.6 GHz, 16GB DDR4, 512GB SSD, WiFi, BT 4.0, DVDRW, VGA, DP, Windows 10 Pro 64-Multi-Language Support
![Amazon.com: HP ProDesk 400 G3 "Professional Mini" Desktop Computer, 7th Gen i5-7500T, 4 GB Ram, 500 GB HDD, Intel HD Graphics, Black/Gray : Electronics Amazon.com: HP ProDesk 400 G3 "Professional Mini" Desktop Computer, 7th Gen i5-7500T, 4 GB Ram, 500 GB HDD, Intel HD Graphics, Black/Gray : Electronics](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/614u45xU0HL.jpg)
Amazon.com: HP ProDesk 400 G3 "Professional Mini" Desktop Computer, 7th Gen i5-7500T, 4 GB Ram, 500 GB HDD, Intel HD Graphics, Black/Gray : Electronics
![Amazon.com: HP ProDesk 400 G3 Mini Computers Office Micro Desktop,i5 Tiny Desktop PC WiFi Business,6500t,8GB DDR4,256GB SSD,Built in WiFi+BT,HDMI,Windows 10,Wireless Keyboard and Mouse + TJJ Mouse Pad(Renewed) : Electronics Amazon.com: HP ProDesk 400 G3 Mini Computers Office Micro Desktop,i5 Tiny Desktop PC WiFi Business,6500t,8GB DDR4,256GB SSD,Built in WiFi+BT,HDMI,Windows 10,Wireless Keyboard and Mouse + TJJ Mouse Pad(Renewed) : Electronics](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/61v2AuWY4vL._AC_UF894,1000_QL80_.jpg)
Amazon.com: HP ProDesk 400 G3 Mini Computers Office Micro Desktop,i5 Tiny Desktop PC WiFi Business,6500t,8GB DDR4,256GB SSD,Built in WiFi+BT,HDMI,Windows 10,Wireless Keyboard and Mouse + TJJ Mouse Pad(Renewed) : Electronics
![Amazon.com: HP ProDesk 400 G3 Small Form Factor, Intel Core Quad i5 6500 up to 3.6 GHz, 16GB DDR4, 512GB SSD, WiFi, BT 4.0, DVDRW, VGA, DP, Windows 10 Pro 64-Multi-Language Support Amazon.com: HP ProDesk 400 G3 Small Form Factor, Intel Core Quad i5 6500 up to 3.6 GHz, 16GB DDR4, 512GB SSD, WiFi, BT 4.0, DVDRW, VGA, DP, Windows 10 Pro 64-Multi-Language Support](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/71hJrgP3LES.jpg)
Amazon.com: HP ProDesk 400 G3 Small Form Factor, Intel Core Quad i5 6500 up to 3.6 GHz, 16GB DDR4, 512GB SSD, WiFi, BT 4.0, DVDRW, VGA, DP, Windows 10 Pro 64-Multi-Language Support
![HP EliteDesk 800 65W G2 Business Mini PC Desktop Computer/Intel Quad-Core i5-6500T up to 3.1GHz/ 8GB DDR4 RAM/ 256GB SSD/WiFi/Bluetooth/USB 3.0/ Windows 10 Professional OS(Renewed) HP EliteDesk 800 65W G2 Business Mini PC Desktop Computer/Intel Quad-Core i5-6500T up to 3.1GHz/ 8GB DDR4 RAM/ 256GB SSD/WiFi/Bluetooth/USB 3.0/ Windows 10 Professional OS(Renewed)](https://images-na.ssl-images-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/61V1uUdDzeS._AC_UL600_SR600,600_.jpg)
HP EliteDesk 800 65W G2 Business Mini PC Desktop Computer/Intel Quad-Core i5-6500T up to 3.1GHz/ 8GB DDR4 RAM/ 256GB SSD/WiFi/Bluetooth/USB 3.0/ Windows 10 Professional OS(Renewed)
![Amazon.com: HP ProDesk 400 G3 Mini, Intel Core i5, 8GB RAM, 256GB SSD, Win10 Pro (Renewed) : Electronics Amazon.com: HP ProDesk 400 G3 Mini, Intel Core i5, 8GB RAM, 256GB SSD, Win10 Pro (Renewed) : Electronics](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/415SoEOBU4L.jpg)
Amazon.com: HP ProDesk 400 G3 Mini, Intel Core i5, 8GB RAM, 256GB SSD, Win10 Pro (Renewed) : Electronics
![Amazon.com: HP ProDesk 400 G3 Mini, Intel Core i5, 8GB RAM, 256GB SSD, Win10 Pro (Renewed) : Electronics Amazon.com: HP ProDesk 400 G3 Mini, Intel Core i5, 8GB RAM, 256GB SSD, Win10 Pro (Renewed) : Electronics](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/31jEtyVK4dL._SR600%2C315_PIWhiteStrip%2CBottomLeft%2C0%2C35_PIStarRatingONE%2CBottomLeft%2C360%2C-6_SR600%2C315_SCLZZZZZZZ_FMpng_BG255%2C255%2C255.jpg)
Amazon.com: HP ProDesk 400 G3 Mini, Intel Core i5, 8GB RAM, 256GB SSD, Win10 Pro (Renewed) : Electronics
![Amazon.com: A-Tech 4GB RAM for HP PRODESK 400 G3 MICROTOWER PC | DDR4 2400MHz DIMM PC4-19200 288-Pin Non-ECC UDIMM Memory Upgrade Module : Electronics Amazon.com: A-Tech 4GB RAM for HP PRODESK 400 G3 MICROTOWER PC | DDR4 2400MHz DIMM PC4-19200 288-Pin Non-ECC UDIMM Memory Upgrade Module : Electronics](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/71YUyxbOj-L._AC_UF894,1000_QL80_.jpg)