Lenovo / ThinkPad / A Series

ThinkPad A285

ThinkPad A285 is a 12.5-inch notebook in the A Series family.

Scope
Product generation / platformPSREF verified
Machine Type
20MW / 20MX
Model / MTM
417Official Models verifiedDirect specifications: 20MW000FJP
Search Japan marketplaces for ThinkPad A285Amazon JapanOpen external site in a new tabRakuten Ichiba (Japan)Open external site in a new tabYahoo! Shopping (Japan)Open external site in a new tabMercari (Japan)Open external site in a new tabYahoo! Auctions (Japan)Open external site in a new tabExternal sitesPR

Buying and service essentials

Verified in official sources

Check before buying

Model / MTM
1 exact specifications recorded417 Models entries verified
CPU / GPU
AMD Ryzen PRO Mobile Processors with Radeon Vega Graphics3 CPU options / AMD Radeon Vega 6 Graphics / AMD Radeon Vega 8 Graphics / AMD Radeon Vega 10 Graphics / Platform options / integrated GPU varies by CPU / this PSREF does not list a dGPU option
Display
12.5-inch / 1366x768 / 1920x10803 platform options / Non-touch / Multi-touch
WWAN
Configuration-dependentRetrofit conditions apply

Upgrades and repair

Memory
DDR4-2400 / SolderedSO-DIMM: 0 / maximum 16 GB
Storage
M.2 2280 SATA SSD / M.2 2280 NVMe SSDSATA 6Gb/s / PCIe NVMe PCIe 3.0 x4 / Maximum simultaneous devices 1 device(s)
Power
USB-CAC adapter: 45 W / 65 W

Motherboard and slot topology

Evidence confidence: not recorded
?

Shows the strength of the supporting evidence. It is not a performance score or recommendation. Full sources appear in the Evidence section below.

Memory implementation
DDR4-2400 / Soldered / SO-DIMM: 0
Storage form factor
M.2 2280 SATA SSD / M.2 2280 NVMe SSD
Maximum simultaneous devices
1 device(s)

Hardware Maintenance ManualOpen external site in a new tab

Specifications

CPU

Evidence confidence: high

CPU options for this platform / AMDAMD Ryzen PRO Mobile Processors with Radeon Vega Graphics

CPUIntegrated GPUCores / threadsBase frequencyMax frequency
AMD Ryzen 3 PRO 2300UOpen external site in a new tabAMD Radeon Vega 6 Graphics4 / 42.00 GHz3.40 GHz
AMD Ryzen 5 PRO 2500UOpen external site in a new tabAMD Radeon Vega 8 Graphics4 / 82.00 GHz3.60 GHz
AMD Ryzen 7 PRO 2700UOpen external site in a new tabAMD Radeon Vega 10 Graphics4 / 82.20 GHz3.80 GHz

Memory

Evidence confidence: high
Type
DDR4-2400
Maximum capacity
16 GB
Physical slots
0
Implementation
DDR4-2400 / Soldered
Upgrade / replacement
Not recorded
Capacity options
8 GB / 16 GB
Configuration constraints
  • Soldered to systemboard; no sockets

Check the board layout in the HMMOpen external site in a new tab

Storage

Evidence confidence: high
Interface and form factor
SATA 6Gb/s / PCIe NVMe PCIe 3.0 x4
Supported form factors
  • M.2 2280 SATA SSD
  • M.2 2280 NVMe SSD
Physical slots
Not recorded
Maximum simultaneous devices
1 device(s)
Upgrade / replacement
Not recorded
Configuration constraints / exclusions
  • The PSREF presents M.2 SATA SSD and M.2 NVMe SSD as one-of storage choices.
Search Japan marketplaces for M.2 2280 NVMe SSDAmazon JapanOpen external site in a new tabRakuten Ichiba (Japan)Open external site in a new tabYahoo! Shopping (Japan)Open external site in a new tabMercari (Japan)Open external site in a new tabYahoo! Auctions (Japan)Open external site in a new tabExternal sitesPR

Check the SSD replacement procedure in the HMMOpen external site in a new tab

Display

Evidence confidence: high
Size
12.5-inch
Platform configuration options
configurationResolutionTouchPanel / brightnessSurface / features
HD non-touch
12.5-inch		1366x768Non-touch220 nitsNot recorded
FHD WVA non-touch
12.5-inch		1920x1080Non-touchWVA / 300 nitsNot recorded
FHD WVA on-cell multi-touch
12.5-inch		1920x1080Multi-touchWVA / 300 nitsOn-cell touch

Battery architecture

Evidence confidence: high
Architecture
Internal
Chemistry
Li-Ion
Capacity
48 Wh

Each row is a platform configuration option. Simultaneous installation is not inferred.

Power and AC adapter

Evidence confidence: high
Connector
USB-C
Wattage
45 W / 65 W

Wireless and WWAN

Evidence confidence: high
WLAN options
  • Realtek RTL8822BE, 2x2 Wi-Fi + Bluetooth combo adapter
  • Intel Wireless-AC 9260, 2x2
WWAN
Configuration-dependent
Retrofit / conditions
Retrofit conditions apply
WWAN options
  • Wireless WAN upgradable, special bid only
  • Fibocom L850-GL 4G LTE-A
Notes
Lenovo states that non-WWAN models are not WWAN upgradable.

Ports and docking

Evidence confidence: high
Ports
  • USB 3.1 Gen 1 Type-A, Always On
  • USB 3.1 Gen 2 Type-A
  • 2x USB-C 3.1 Gen 2 with Power Delivery and DisplayPort
  • HDMI 2.0
  • Ethernet extension connector
Docking support
  • Side docking connector

Dimensions and weight

Evidence confidence: high
HD and FHD touch models
307.7 × 209.8 × 17.4 mm
FHD non-touch models
307.7 × 209.8 × 17.8 mm
FHD non-touch models
1.13 kg / By configuration
HD models
1.26 kg / By configuration
FHD touch models
1.27 kg / By configuration

Official maintenance documentation and key procedures

Key procedures

Keyboard
p.69–74
Base cover
p.74–75
M.2 SSD
p.75–76
Built-in battery
p.78–79
Display assembly
p.88–90
Keyboard bezel assembly
p.90–91

Part number information

Part numbers and their relationships to this product or model are shown when verified in official Lenovo sources.

Official Model-listed parts

Lenovo listing verified

These 37 parts are listed directly for Model 20MW000FJP in Lenovo Parts Lookup.

Model / MTM
20MW000FJP
Model-listed parts
37
Parts with direct specs
4
Official source
Lenovo Parts Lookup
ComponentP/NLenovo-provided nameDirect Lenovo specificationsSubstitute references
AC アダプター (AD)00HM664Lenovo AC_ADAPTER Type-C 45W 2P ブラック
Plug
USB-C
Capacity
45W
Pin
2
Safety
WW
Color
Black
18 (not expanded)
アンテナ (AN)01YN074アンテナ、キット、WLAN、のみ、AmphenolNot confirmed1 (not expanded)
ベゼル (BC)02DL752LCD Bezel Sheet RGB FHDNot confirmed—
内蔵バッテリー (BI)5B10W13920Internal, 6c, 48Wh, LiIon, LGCNot confirmed5 (not expanded)
ベゼル/サービスドア (BZ)02DL770Finn1.0 AMD DカバーASM FRUNot confirmed—
Aカバー アセンブリー、LCD カバー アセンブリー (CA)01YN062ケース、背面、カバー、FHD、ブラックNot confirmed—
CMOSバッテリー (CB)01HY008RTC,CR2016Not confirmed4 (not expanded)
ケーブル、外部ケーブル、電源コード、USBケーブル、CRU可能内部ケーブル (CC)04T0752JP,AntiTR,0.9M,2P,NON-LH,LTKNot confirmed13 (not expanded)
内蔵カード (CI)01YU051Finn AMD_FRU CS16 2BCP Small Mylar + Synaptics PCB, GS Black, SOVP&MP, AMD, ChiconyNot confirmed2 (not expanded)
内蔵カード (CI)02DL712FRU Power Board asmNot confirmed—
WLAN (CL)01AX712Wireless,CMB,FXN,8822BE M2Not confirmed5 (not expanded)
カメラ (CM)01HW027Camera,720P,Front,2MIC,WTB,BsnNot confirmed9 (not expanded)
内蔵ケーブル (CT)01YN094ケーブル、FFC、TouchPadNot confirmed—
内蔵ケーブル (CT)02DL746camera cable RGBNot confirmed—
内蔵ケーブル (CT)02DL751LCD cable FHDNot confirmed—
ファン/ 冷却アセンブリ (FA)02DC275サーマル・モジュール、UMANot confirmed1 (not expanded)
内蔵キーボード (KI)01YP030内蔵キーボード、日本語、ブラック、バックライトなしNot confirmed2 (not expanded)
スクリューキット/ラベルキット/その他 (KS)01YU007Screw,Tape,KitNot confirmed—
スクリューキット/ラベルキット/その他 (KS)02DL771Finn1.0 AMDラベルFRUキットNot confirmed1 (not expanded)
スクリューキット/ラベルキット/その他 (KS)02DL858Finn AMD Label FRU Kit LIPCNot confirmed1 (not expanded)
LCD部品 (LA)01YN079ケース、LCD、ベゼル、フレームNot confirmed—
LCDパネル (LP)01YN106INX 12.5 FHD IPS AG
Size (Inch)
12.5
Resolution
FHD
Screen Type (Glare or Anti-Glare)
Anti-Glare
Touch
Non-Touch
Panel Type
IPS
Brightness (nit)
300
7 (not expanded)
M.2カード (M2)00UP488Lenovo SSD_ASM 256G,M.2,2280,PCIe3x4,Samsung,OPAL
Capacity (GB)
256
Form Factor
M.2 2280
Interface
PCIE3X4
Security
OPAL
201 (not expanded)
メカニカルアセンブリ (MA)01YN068ヒンジ、キット、FHD、SZSNot confirmed1 (not expanded)
メカニカルアセンブリ (MA)01YN087RGB、カメラ、シャッター、レバーNot confirmed—
メカニカルアセンブリ (MA)02DL755COVER LOG UP SUB ASSY W/O FPNot confirmed—
メカニカルアセンブリ (MA)02DL760MECH_ASM KIT_Mech_MiscNot confirmed—
内蔵部品その他 (MN)01LV456テープ、絶縁、クリックパッドNot confirmed—
内蔵部品その他 (MN)01YN060ケーブル、バンド、4Not confirmed—
内蔵部品その他 (MN)01YN078キット、ダミー、WWAN、アンテナNot confirmed—
内蔵部品その他 (MN)01YU001DUMMY,Smart Card,BlackNot confirmed1 (not expanded)
内蔵部品その他 (MN)5M20V98865Slide,USB,ConnectorNot confirmed1 (not expanded)
外部部品その他 (MX)01YU005TRAY,SD,BlackNot confirmed1 (not expanded)
再利用アイテム(再利用テープ/マイラー/スポンジ/冷却パッド/ゴム/ゴム足) (OT)02DL836FinnA RUBBER_SSD_THERMAL,2280Not confirmed6 (not expanded)
システムボード (PL)02DL701Lenovo BDPLANAR Rz5PRO 2500U 8G WIN YDYTdT2Dc
DPK
WIN
CPU
AMDR52500UP
GPU Type
UMA
DRAM
8G
4 (not expanded)
RDVD/ RUSB (RC)5R30U19154Win10Homex64 Modular JPNot confirmed—
内蔵スピーカー (SI)01YN053ASMNot confirmed—

This table contains parts listed directly for the displayed Model / MTM. It is not a product-wide compatibility list. Substitute identifiers are retained as counts and are not promoted to published parts in this breadth layer.

Model / MTM

417

Codes listed in Lenovo Models identify a relationship to this product. They do not establish exact CPU, memory, storage or other configuration details.

Model / MTM codes verified in official sources
417
Exact configuration data
1

Enter a code to search the official Lenovo Models data for this product.

    Model / MTM with recorded exact specifications

    Exact specifications recorded

    These are sold configurations listed in Lenovo Models. They are not serial-number or as-built configurations. Each value comes directly from the applicable Model / MTM row.

    Model / MTMMachine TypeRegion / Country/RegionProcessorGraphicsMemoryStorageDisplayTouchscreenWLAN / BluetoothWWANOSOfficial evidence
    20MW000FJP20MWJAPAN / JapanAMD Ryzen 5 PRO 2500U (4C / 8T, 2.0 / 3.6GHz, 2MB L2 / 4MB L3)Integrated AMD Radeon Vega 8 Graphics8GB Soldered DDR4-2400256GB SSD M.2 2280 PCIe NVMe Opal212.5" FHD (1920x1080) WVA 300nits Anti-glareNoneRTL8822BE 11ac, 2x2 + BT4.2NoneWindows 10 Home 64, JapaneseLenovo Models

    Evidence

    4 sources. Of 12 product claims, 12 are verified with high confidence.Display, battery and keyboard parts relationships each show their state as verified in official sources. Procedure coverage in official maintenance documentation is audited per product for major components.