ASUS PRIME B550-PLUS upgrades

This is a bare ATX motherboard with 4 DDR4 DIMM sockets (128 GB max), two M.2 slots (one PCIe 4.0, one PCIe 3.0) and 6 SATA ports. Nothing is soldered. The x16 slots support PCIe bifurcation for multi-NVMe adapter cards.

DDR4 DIMM 4 × DDR4 DIMM · up to 128 GB total · 4600 MT/s

Unbuffered desktop DIMMs only, no SO-DIMM or registered RAM. Dual-channel. 32 GB per module is implied by the 128 GB total across 4 slots, not stated by ASUS. Only 3200 MT/s and below is non-overclocked, and anything above relies on XMP/O.C. and is not guaranteed. ECC works only on CPUs that support it. Two matched DIMMs are the most stable setup.

$/GB Price Capacity Product Condition Store Link
$4.69 $150.00 2 × 16 GB Corsair Vengeance LPX 32GB Kit (2 × 16GB) DDR4-3200 CL16 DDR4-3200 CL16 DIMM Used eBay US +2 View deal
$5.19 $83.00 2 × 8 GB Corsair Vengeance LPX 16GB Kit (2 × 8GB) DDR4-3200 CL16 DDR4-3200 CL16 DIMM Used eBay US +2 View deal
$6.22 $199.00 2 × 16 GB Corsair Vengeance LPX 32GB Kit (2 × 16GB) DDR4-3200 CL16 DDR4-3200 CL16 DIMM New eBay US +2 View deal
$6.25 $99.99 2 × 8 GB Corsair Vengeance LPX 16GB Kit (2 × 8GB) DDR4-3200 CL16 DDR4-3200 CL16 DIMM New eBay US View deal
$7.81 $500.00 2 × 32 GB G.Skill Ripjaws V 64GB Kit (2 × 32GB) DDR4-3600 CL18 DDR4-3600 CL18 DIMM New eBay US View deal

All compatible memory with filters →

M.2_1 (Key M, CPU) SSD M.2 2242 / M.2 2260 / M.2 2280 / M.2 22110 (NVMe / SATA)

PCIe 4.0 x4 with 3rd Gen and 5000 series Ryzen. APUs (G-series) are likely limited to PCIe 3.0. Check that your case and cooling clear 22110 drives.

$/TB Price Capacity Product Condition Store Link
$75.00 $299.99 4 TB Crucial P3 Plus 4TB M.2 2280 NVMe M.2 2280 SSD · NVMe Gen4 Used eBay US +2 View deal
$107.50 $215.00 2 TB Crucial P3 Plus 2TB M.2 2280 NVMe M.2 2280 SSD · NVMe Gen4 Used eBay US +2 View deal
$119.50 $239.00 2 TB Crucial P3 Plus 2TB M.2 2280 NVMe M.2 2280 SSD · NVMe Gen4 New eBay US +2 View deal
$119.50 $239.00 2 TB Crucial P3 Plus 2TB M.2 2280 NVMe M.2 2280 SSD · NVMe Gen4 Refurbished eBay US +1 View deal
$120.00 $120.00 1 TB Crucial P3 1TB M.2 2280 NVMe (Gen3) M.2 2280 SSD · NVMe Gen3 Used eBay US +2 View deal
$125.00 $499.99 4 TB Samsung 990 PRO 4TB M.2 2280 NVMe M.2 2280 SSD · NVMe Gen4 Used eBay US +2 View deal
$127.99 $127.99 1 TB Kingston NV3 1TB M.2 2280 NVMe M.2 2280 SSD · NVMe Gen4 Used eBay US +2 View deal
$129.99 $129.99 1 TB Crucial P3 1TB M.2 2280 NVMe (Gen3) M.2 2280 SSD · NVMe Gen3 New eBay US +2 View deal
$135.00 $540.00 4 TB WD_BLACK SN850X 4TB M.2 2280 NVMe M.2 2280 SSD · NVMe Gen4 New eBay US +2 View deal
$148.00 $148.00 1 TB Samsung 970 EVO Plus 1TB M.2 2280 NVMe M.2 2280 SSD · NVMe Gen3 Used eBay US +2 View deal

All compatible storage with filters →

M.2_2 (Key M, chipset) SSD M.2 2242 / M.2 2260 / M.2 2280 / M.2 22110 (NVMe / SATA)

PCIe 3.0 x4 via the B550 chipset. Populating it disables SATA ports 5 and 6.

$/TB Price Capacity Product Condition Store Link
$75.00 $299.99 4 TB Crucial P3 Plus 4TB M.2 2280 NVMe M.2 2280 SSD · NVMe Gen4 Used eBay US +2 View deal
$107.50 $215.00 2 TB Crucial P3 Plus 2TB M.2 2280 NVMe M.2 2280 SSD · NVMe Gen4 Used eBay US +2 View deal
$119.50 $239.00 2 TB Crucial P3 Plus 2TB M.2 2280 NVMe M.2 2280 SSD · NVMe Gen4 New eBay US +2 View deal
$119.50 $239.00 2 TB Crucial P3 Plus 2TB M.2 2280 NVMe M.2 2280 SSD · NVMe Gen4 Refurbished eBay US +1 View deal
$120.00 $120.00 1 TB Crucial P3 1TB M.2 2280 NVMe (Gen3) M.2 2280 SSD · NVMe Gen3 Used eBay US +2 View deal
$125.00 $499.99 4 TB Samsung 990 PRO 4TB M.2 2280 NVMe M.2 2280 SSD · NVMe Gen4 Used eBay US +2 View deal
$127.99 $127.99 1 TB Kingston NV3 1TB M.2 2280 NVMe M.2 2280 SSD · NVMe Gen4 Used eBay US +2 View deal
$129.99 $129.99 1 TB Crucial P3 1TB M.2 2280 NVMe (Gen3) M.2 2280 SSD · NVMe Gen3 New eBay US +2 View deal
$135.00 $540.00 4 TB WD_BLACK SN850X 4TB M.2 2280 NVMe M.2 2280 SSD · NVMe Gen4 New eBay US +2 View deal
$148.00 $148.00 1 TB Samsung 970 EVO Plus 1TB M.2 2280 NVMe M.2 2280 SSD · NVMe Gen3 Used eBay US +2 View deal

All compatible storage with filters →

SATA 6Gb/s port 6 × HDD / SSD 2.5" / 3.5" (SATA)

These are board ports only, and the drive bays and SATA cables depend on your case. Ports 5 and 6 are disabled when M.2_2 is populated, leaving 4 usable. RAID 0, 1 and 10 are supported.

$/TB Price Capacity Product Condition Store Link
$19.73 $315.68 16 TB Seagate Exos X18 16TB 3.5" SATA HDD 3.5" HDD · SATA · 7200 rpm Used eBay US +2 View deal
$20.00 $160.00 8 TB Seagate BarraCuda 8TB 3.5" HDD 3.5" HDD · SATA · 5400 rpm · SMR Used eBay US +2 View deal
$31.19 $499.00 16 TB Seagate Exos X18 16TB 3.5" SATA HDD 3.5" HDD · SATA · 7200 rpm Refurbished eBay US +1 View deal
$31.25 $249.99 8 TB Seagate IronWolf 8TB 3.5" NAS HDD 3.5" HDD · SATA · 7200 rpm Used eBay US +2 View deal
$31.25 $500.00 16 TB Seagate Exos X18 16TB 3.5" SATA HDD 3.5" HDD · SATA · 7200 rpm New eBay US +2 View deal
$31.49 $125.95 4 TB Seagate IronWolf 4TB 3.5" NAS HDD 3.5" HDD · SATA · 5400 rpm Used eBay US +2 View deal
$31.67 $380.00 12 TB Toshiba N300 12TB 3.5" NAS HDD 3.5" HDD · SATA · 7200 rpm Used eBay US View deal
$34.37 $274.99 8 TB Seagate IronWolf 8TB 3.5" NAS HDD 3.5" HDD · SATA · 7200 rpm New eBay US +2 View deal
$35.62 $285.00 8 TB WD Red Plus 8TB 3.5" NAS HDD 3.5" HDD · SATA · 5640 rpm New eBay US +2 View deal
$40.60 $162.39 4 TB Seagate IronWolf 4TB 3.5" NAS HDD 3.5" HDD · SATA · 5400 rpm New eBay US +2 View deal

All compatible storage with filters →