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Battery configuration

Main M(x) Main hot-swappable
(max.cells)
Secondary U Ultrabay removable
u Ultrabay unremovable
M(x) Main removable
(max.cells)
m(x) internal
(max.cells)
"PowerBridge"
m(x) Main internal
(max.cells)
S Slice battery
Laptop color codes

Laptop storage combinations (excluding WWAN slot)

Level PCIe 4.0 x4 PCIe 3.0 x4 PCIe 3.0 x2 M.2 SATA mSATA 1.8" SATA 2.5" SATA 1.8" IDE 2.5" IDE
2019
Not yet
(laptops)
2013 2013 2013 2009 2003 2003 1991 1988
3 2
4
3 1
2 2
3 2
3
2 1
4
3 1
2 2
2
1 1
3
2 1
1
2
1 1
2 1
4
1
1 1
3
1
1 1
1 1
1 1
2
3
1
1
2
1
1

Laptop memory

Amount LPDDR5X LPDDR5 DDR5 LPDDR4X LPDDR4 DDR4 LPDDR3 DDR4 DDR3L DDR3 DDR2 DDR SDR EDO FPM
dual channel < dual channel dual channel < dual channel dual channel < dual channel dual channel < dual channel
2022
(laptops)
2019
(laptops)
2020
2017 2014 2014 2012 2014 2010 2007 2003 1998 1993 1993 1987
max memory = 512 GB N/A N/A 512 GB N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
max memory = 256 GB N/A 256 GB (4 slots) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
max memory = 128 GB 128 GB 128 GB N/A N/A 128 GB (4 slots) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
64 GB ≤ max memory < 128 GB 64 GB N/A N/A 64 GB N/A 64 GB (2 slots) 64 GB (4 slots) N/A N/A N/A N/A N/A N/A N/A N/A N/A
32 GB ≤ max memory < 64 GB 32 GB 32 GB 32 GB N/A 32 GB 32 GB (2 slots) 32 GB (4 slots) N/A N/A N/A N/A N/A N/A N/A
16 GB ≤ max memory < 32 GB 16 GB 16 GB 16 GB 16 GB 16 GB (2 slots) 16 GB (4 slots) N/A N/A N/A N/A N/A
8 GB ≤ max memory < 16 GB 8 GB 8 GB 8 GB 8 GB 8 GB (2 slots) 8 GB (4 slots) N/A N/A N/A
4 GB ≤ max memory < 8 GB 4 GB 4 GB 4 GB 4 GB 4 GB 4 GB (4 slots) 4 GB (4 slots) N/A
2 GB ≤ max memory < 4 GB 2 GB (8 chips) 2 GB 2 GB 2 GB 2 GB 2 GB N/A
1 GB ≤ max memory < 2 GB 1 GB (1 chip) dual channel min dual channel min N/A single channel min 1 GB 1 GB 1 GB 1 GB (4 slots)
512 MB ≤ max memory < 1 GB N/A N/A N/A single channel min single channel min N/A dual channel min half channel min 512 MB (8 chips) 512 MB (8 chips) 512 MB 512 MB
256 MB ≤ max memory < 512 MB N/A N/A N/A 256 MB (1 chip) 256 MB (1 chip) N/A single channel min 256 MB (1 chip) N/A single channel min N/A single channel min 256 MB
128 MB ≤ max memory < 256 MB N/A N/A N/A N/A N/A N/A 128 MB (1 chip) N/A N/A half channel min N/A half channel min
64 MB ≤ max memory < 128 MB N/A N/A N/A N/A N/A N/A N/A N/A N/A 64 MB (1 chip) N/A 64 MB (1 chip)
max memory < 64 MB N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A